BEGIN:VCALENDAR PRODID:University of Cologne\, ITP\, Events Server X-WR-TIMEZONE:Europe/Berlin BEGIN:VEVENT SUMMARY:CMTgroup | Johannes Waizner DTSTART;TZID=Europe/Berlin:20141008T100000 DTEND;TZID=Europe/Berlin:20141008T113000 DTSTAMP:20260527T090434Z UID:0000000556@events.thp.uni-koeln.de DESCRIPTION:Johannes Waizner\n\nHelimagnons and Skyrmimagnons\n\n\n\nConta ct Person: not specified LOCATION:Conference room of the Institute for Theoretical Physics END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Markus Garst DTSTART;TZID=Europe/Berlin:20141015T100000 DTEND;TZID=Europe/Berlin:20141015T113000 DTSTAMP:20260527T090434Z UID:0000000559@events.thp.uni-koeln.de DESCRIPTION:Markus Garst\n\nInfluence of crystalline anisotropies on the m agnetic order in MnSi\n\n\n\nContact Person: not specified LOCATION:Seminar Room of the Institute for Theoretical Physics END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Johannes Helmes DTSTART;TZID=Europe/Berlin:20141022T100000 DTEND;TZID=Europe/Berlin:20141022T113000 DTSTAMP:20260527T090434Z UID:0000000546@events.thp.uni-koeln.de DESCRIPTION:Johannes Helmes\n\nTopological phase transitions in the classi cal toric code model\n\n\n\nContact Person: not specified LOCATION:Institute for Theoretical Physics END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Mihailo Cubrovic DTSTART;TZID=Europe/Berlin:20141029T100000 DTEND;TZID=Europe/Berlin:20141029T113000 DTSTAMP:20260527T090434Z UID:0000000555@events.thp.uni-koeln.de DESCRIPTION:Mihailo Cubrovic\n\nt.b.a.\n\n\n\nContact Person: not specifie d LOCATION:Seminar room of the Institute for Theoretical Physics END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Stefan Wolff DTSTART;TZID=Europe/Berlin:20141112T103000 DTEND;TZID=Europe/Berlin:20141112T113000 DTSTAMP:20260527T090434Z UID:0000000520@events.thp.uni-koeln.de DESCRIPTION:Stefan Wolff\n\nMaster colloquium\n\n\n\nContact Person: not s pecified LOCATION:Seminar room 03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Kevin O'Brien DTSTART;TZID=Europe/Berlin:20141119T100000 DTEND;TZID=Europe/Berlin:20141119T113000 DTSTAMP:20260527T090434Z UID:0000000521@events.thp.uni-koeln.de DESCRIPTION:Kevin O'Brien\n\nMaster colloquium\n\n\n\nContact Person: not specified LOCATION:Conference Room (Institute for Theoretical Physics) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Michael Becker DTSTART;TZID=Europe/Berlin:20141126T100000 DTEND;TZID=Europe/Berlin:20141126T113000 DTSTAMP:20260527T090434Z UID:0000000560@events.thp.uni-koeln.de DESCRIPTION:Michael Becker\n\nPhD Defense\n\n\n\nContact Person: not speci fied LOCATION:Seminar Room of the Institute for Theoretical Physics END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Moritz Ernst DTSTART;TZID=Europe/Berlin:20141203T100000 DTEND;TZID=Europe/Berlin:20141203T113000 DTSTAMP:20260527T090434Z UID:0000000561@events.thp.uni-koeln.de DESCRIPTION:Moritz Ernst\n\nPhD Defense\n\n\n\nContact Person: not specifi ed LOCATION:Seminar Room of the Institute for Theoretical Physics END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Karla Loida DTSTART;TZID=Europe/Berlin:20141210T100000 DTEND;TZID=Europe/Berlin:20141210T113000 DTSTAMP:20260527T090434Z UID:0000000522@events.thp.uni-koeln.de DESCRIPTION:Karla Loida\, University of Bonn\n\nMaster colloquium\n\n\n\nC ontact Person: not specified LOCATION:Seminar Room of the Institute for Theoretical Physics END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ralf Bulla DTSTART;TZID=Europe/Berlin:20150107T100000 DTEND;TZID=Europe/Berlin:20150107T113000 DTSTAMP:20260527T090434Z UID:0000000557@events.thp.uni-koeln.de DESCRIPTION:Ralf Bulla\n\nOn anharmonic impurities\, entanglement\, and mu lti-impurity Anderson models\n\n\n\nContact Person: not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Benjamin Mille DTSTART;TZID=Europe/Berlin:20150114T100000 DTEND;TZID=Europe/Berlin:20150114T113000 DTSTAMP:20260527T090434Z UID:0000000558@events.thp.uni-koeln.de DESCRIPTION:Benjamin Mille\n\nt.b.a.\n\n\n\nContact Person: not specified LOCATION:Seminar room 0.02\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Stefan Meier DTSTART;TZID=Europe/Berlin:20150121T100000 DTEND;TZID=Europe/Berlin:20150121T113000 DTSTAMP:20260527T090434Z UID:0000000570@events.thp.uni-koeln.de DESCRIPTION:Stefan Meier\n\nFunctional renormalization group approach to p hases of broken symmetries and multiband models\n\nFunctional renormalizat ion group (fRG) methods relate theories at different energy scales via an exact flow equation for a functional of the fields. In this talk\, I will focus on a one-particle irreducible\, purely fermionic formulation and\, i n particular\, on its application to phases of broken symmetries and multi band Hubbard models. First\, I will report on a recent fRG study on antife rromagnetic ordering in a simple two-pocket model\, including a possible e xtension to coexistence phases of antiferromagnetism and superconductivity . The second part will be devoted to multiband systems. Particularities of the point-group behavior of multiband Hubbard models are discussed and fR G results are presented for a generic three-band model for the cuprate sup erconductors. Finally\, an outlook on a potentially highly parallelizable fRG algorithm is given\, which should be suitable for calculations with a larger number of bands.\n\nContact Person: not specified LOCATION:Seminar room 03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tim Eschmann DTSTART;TZID=Europe/Berlin:20150128T100000 DTEND;TZID=Europe/Berlin:20150128T113000 DTSTAMP:20260527T090434Z UID:0000000613@events.thp.uni-koeln.de DESCRIPTION:Tim Eschmann\n\nBachelor Colloquium\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Sarah Schroeter DTSTART;TZID=Europe/Berlin:20150204T100000 DTEND;TZID=Europe/Berlin:20150204T113000 DTSTAMP:20260527T090434Z UID:0000000562@events.thp.uni-koeln.de DESCRIPTION:Sarah Schroeter\n\nt.b.a.\n\n\n\nContact Person: not specified LOCATION:Conference Room of the Institute for Theoretical Physics END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Stephan Mandt DTSTART;TZID=Europe/Berlin:20150211T100000 DTEND;TZID=Europe/Berlin:20150211T113000 DTSTAMP:20260527T090434Z UID:0000000620@events.thp.uni-koeln.de DESCRIPTION:Stephan Mandt\, Columbia University\n\nLarge scale probabilist ic modeling and machine learning\n\nModern data analysis requires computat ions on massive data. For example\, consider the problem of\nautomatically classifying articles in a huge digital archive containing millions of ent ries\, or recommending\nitems to millions of users based on their purchase history. Bayesian probabilistic modeling allows us to\nmake assumptions a bout hidden structure in the data that is not directly observable. In Baye sian inference\,\nwe fit a probability distribution that reveals this stru cture.\n\nBayesian inference has been inspired by theoretical physics over many years\, a prominent example\nbeing Markov Chain Monte Carlo algorith ms.\nIn a more recent approach called variational inference\, Bayesian inf erence is mapped to an optimization problem. Here\, we fit a parametrized\ n'mean field' distribution by optimizing over variational parameters in a way to maximize the statistical evidence of the data.\nThis method scales up to massive data sets when using stochastic optimization\, termed stocha stic\nvariational inference (SVI).\n\nSVI uses easy-to-compute noisy gradi ents by subsampling from the large underlying data set.\nIt suffers from t wo major problems: noisy gradients and non-convexity. We introduce a schem e\nthat reduces the noise by averaging over parts of the past gradients.\n This introduces a bias\, and we discuss the tradeoff between variance and bias. To enable convergence to better local optima\,\nwe introduce determi nistic annealing for SVI. We introduce a temperature parameter that determ inistically\ndeforms the objective\, and then reduce this parameter over t he course of the optimization. We test both\nmethods on Latent Dirichlet A llocation\, a topic model\, applied to three large text corpora.\n\n\nCont act Person: Achim Rosch LOCATION:Seminar room 0.01\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Emad Aboulouz DTSTART;TZID=Europe/Berlin:20150326T100000 DTEND;TZID=Europe/Berlin:20150326T113000 DTSTAMP:20260527T090434Z UID:0000000653@events.thp.uni-koeln.de DESCRIPTION:Emad Aboulouz\n\nMaster Colloquium\n\n\n\nContact Person: Achi m Rosch LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Stephanie Matern DTSTART;TZID=Europe/Berlin:20150408T100000 DTEND;TZID=Europe/Berlin:20150408T113000 DTSTAMP:20260527T090434Z UID:0000000663@events.thp.uni-koeln.de DESCRIPTION:Stephanie Matern\n\nMagnetism of a spin-orbit entangled j=1/2 Mott insulator on the fcc lattice\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.01\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Benjamin Heil DTSTART;TZID=Europe/Berlin:20150422T093000 DTEND;TZID=Europe/Berlin:20150422T101500 DTSTAMP:20260527T090434Z UID:0000000664@events.thp.uni-koeln.de DESCRIPTION:Benjamin Heil\n\nBachelor colloquium\n\n\n\nContact Person: no t specified LOCATION:Seminar Room 0.01\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Johannes Kombe DTSTART;TZID=Europe/Berlin:20150422T101500 DTEND;TZID=Europe/Berlin:20150422T113000 DTSTAMP:20260527T090434Z UID:0000000680@events.thp.uni-koeln.de DESCRIPTION:Johannes Kombe\, Oxford University\n\nAnyons and Topological q uantum computing\n\n\n\nContact Person: Achim Rosch LOCATION:Seminar Room 0.01\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jan Gelhausen DTSTART;TZID=Europe/Berlin:20150429T100000 DTEND;TZID=Europe/Berlin:20150429T113000 DTSTAMP:20260527T090434Z UID:0000000662@events.thp.uni-koeln.de DESCRIPTION:Jan Gelhausen\n\nOpen Quantum Magnets with interacting Rydberg Atoms in a Cavity\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.01\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Peter Broecker DTSTART;TZID=Europe/Berlin:20150506T100000 DTEND;TZID=Europe/Berlin:20150506T113000 DTSTAMP:20260527T090434Z UID:0000000658@events.thp.uni-koeln.de DESCRIPTION:Peter Broecker\n\nEntanglement and the sign problem\n\n\n\nCon tact Person: not specified LOCATION:Seminar Room 0.01\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dmitry Bagrets DTSTART;TZID=Europe/Berlin:20150520T100000 DTEND;TZID=Europe/Berlin:20150520T113000 DTSTAMP:20260527T090434Z UID:0000000673@events.thp.uni-koeln.de DESCRIPTION:Dmitry Bagrets\n\nEffective field theory of the disordered Wey l semimetal\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.01\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Lukas Heinen DTSTART;TZID=Europe/Berlin:20150603T100000 DTEND;TZID=Europe/Berlin:20150603T113000 DTSTAMP:20260527T090434Z UID:0000000674@events.thp.uni-koeln.de DESCRIPTION:Lukas Heinen\n\ntba\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.01\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ramses Sanchez DTSTART;TZID=Europe/Berlin:20150610T100000 DTEND;TZID=Europe/Berlin:20150610T113000 DTSTAMP:20260527T090434Z UID:0000000659@events.thp.uni-koeln.de DESCRIPTION:Ramses Sanchez\n\nMean-field theory of the doped kagome antife rromagnet\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.01\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Laura Koehler DTSTART;TZID=Europe/Berlin:20150617T100000 DTEND;TZID=Europe/Berlin:20150617T113000 DTSTAMP:20260527T090434Z UID:0000000671@events.thp.uni-koeln.de DESCRIPTION:Laura Koehler\n\nStrongly correlated critical chiral paramagne ts\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.01\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Wilfried Michel DTSTART;TZID=Europe/Berlin:20150624T100000 DTEND;TZID=Europe/Berlin:20150624T113000 DTSTAMP:20260527T090434Z UID:0000000676@events.thp.uni-koeln.de DESCRIPTION:Wilfried Michel\n\nTracing Entanglement - From replicated Spin s to Entanglement Spectra\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.01\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jonathan Lux DTSTART;TZID=Europe/Berlin:20150701T100000 DTEND;TZID=Europe/Berlin:20150701T113000 DTSTAMP:20260527T090434Z UID:0000000677@events.thp.uni-koeln.de DESCRIPTION:Jonathan Lux\n\nFormation and thermal destruction of metallic puddles in a fully compensated topological insulator\n\n\n\nContact Person : not specified LOCATION:Seminar Room 0.01\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Simon Trebst DTSTART;TZID=Europe/Berlin:20150708T100000 DTEND;TZID=Europe/Berlin:20150708T113000 DTSTAMP:20260527T090434Z UID:0000000678@events.thp.uni-koeln.de DESCRIPTION:Simon Trebst\n\nEntanglement monotonicity: c-theorem\, F-theor em\, a-theorem\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Achim Rosch DTSTART;TZID=Europe/Berlin:20150715T100000 DTEND;TZID=Europe/Berlin:20150715T113000 DTSTAMP:20260527T090434Z UID:0000000679@events.thp.uni-koeln.de DESCRIPTION:Achim Rosch\n\nSpin-Peierls Instability of Three-Dimensional S pin Liquids with Majorana Fermi Surface\n\n\n\nContact Person: not specifi ed LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | David Mikhail DTSTART;TZID=Europe/Berlin:20150831T100000 DTEND;TZID=Europe/Berlin:20150831T110000 DTSTAMP:20260527T090434Z UID:0000000747@events.thp.uni-koeln.de DESCRIPTION:David Mikhail\n\nEinfluss des Tunnelns durch das Vakuum auf Me ssungen der lokalen Zustandsdichte in Graphen in Anwesenheit einer Stoerst elle.\n\n\n\nContact Person: Achim Rosch LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jean-Sebastien Bernier DTSTART;TZID=Europe/Berlin:20150923T100000 DTEND;TZID=Europe/Berlin:20150923T110000 DTSTAMP:20260527T090434Z UID:0000000707@events.thp.uni-koeln.de DESCRIPTION:Jean-Sebastien Bernier\, University of Bonn\n\nGeneration and propagation of correlations in non-equilibrium quantum many-body systems\n \n\n\nContact Person: Simon Trebst LOCATION:ETP 0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Lukas Heinen DTSTART;TZID=Europe/Berlin:20151021T100000 DTEND;TZID=Europe/Berlin:20151021T113000 DTSTAMP:20260527T090434Z UID:0000000759@events.thp.uni-koeln.de DESCRIPTION:Lukas Heinen\n\nDipolar Interactions in Thin Films of Chiral M agnets\n\n\n\nContact Person: not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jan Gelhausen DTSTART;TZID=Europe/Berlin:20151028T100000 DTEND;TZID=Europe/Berlin:20151028T113000 DTSTAMP:20260527T090434Z UID:0000000760@events.thp.uni-koeln.de DESCRIPTION:Jan Gelhausen\n\nMany-body localization\n\n\n\nContact Person: not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Robert Bamler DTSTART;TZID=Europe/Berlin:20151104T100000 DTEND;TZID=Europe/Berlin:20151104T113000 DTSTAMP:20260527T090434Z UID:0000000761@events.thp.uni-koeln.de DESCRIPTION:Robert Bamler\n\nTheory for forces on smooth magnetic textures \n\n\n\nContact Person: not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Kevin O'Brien DTSTART;TZID=Europe/Berlin:20151111T100000 DTEND;TZID=Europe/Berlin:20151111T113000 DTSTAMP:20260527T090434Z UID:0000000762@events.thp.uni-koeln.de DESCRIPTION:Kevin O'Brien\n\nWeyl Spin Liquids\n\n\n\nContact Person: not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Max Genske DTSTART;TZID=Europe/Berlin:20151118T100000 DTEND;TZID=Europe/Berlin:20151118T113000 DTSTAMP:20260527T090434Z UID:0000000763@events.thp.uni-koeln.de DESCRIPTION:Max Genske\n\nThe Floquet-Boltzmann equation\n\n\n\nContact Pe rson: not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Laura Koehler DTSTART;TZID=Europe/Berlin:20151125T100000 DTEND;TZID=Europe/Berlin:20151125T113000 DTSTAMP:20260527T090434Z UID:0000000764@events.thp.uni-koeln.de DESCRIPTION:Laura Koehler\n\nStrongly correlated critical chiral paramagne ts\n\n\n\nContact Person: not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Rubens Carvalho DTSTART;TZID=Europe/Berlin:20151202T100000 DTEND;TZID=Europe/Berlin:20151202T113000 DTSTAMP:20260527T090434Z UID:0000000765@events.thp.uni-koeln.de DESCRIPTION:Rubens Carvalho\n\nEffects of band-filling and disorder in the Falicov-Kimball model\n\n\n\nContact Person: not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Finn Lasse Buessen DTSTART;TZID=Europe/Berlin:20151209T100000 DTEND;TZID=Europe/Berlin:20151209T113000 DTSTAMP:20260527T090434Z UID:0000000766@events.thp.uni-koeln.de DESCRIPTION:Finn Lasse Buessen\n\nIntroduction to the Pseudo-Fermion Funct ional Renormalization Group\n\n\n\nContact Person: not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Benjamin Mille DTSTART;TZID=Europe/Berlin:20160105T130000 DTEND;TZID=Europe/Berlin:20160105T140000 DTSTAMP:20260527T090434Z UID:0000000806@events.thp.uni-koeln.de DESCRIPTION:Benjamin Mille\n\nReal-space properties of two-impurity Anders on models (Master defense)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Christopher Bartel DTSTART;TZID=Europe/Berlin:20160113T100000 DTEND;TZID=Europe/Berlin:20160113T113000 DTSTAMP:20260527T090434Z UID:0000000769@events.thp.uni-koeln.de DESCRIPTION:Christopher Bartel\n\nModeling Newton's Cradle\n\n\n\nContact Person: not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Johannes Waizner DTSTART;TZID=Europe/Berlin:20160127T100000 DTEND;TZID=Europe/Berlin:20160127T113000 DTSTAMP:20260527T090434Z UID:0000000770@events.thp.uni-koeln.de DESCRIPTION:Johannes Waizner\n\nChiral magnetic resonances\, linear dichro ism\, and spin-wave excitations in skyrmion crystals\n\n\n\nContact Person : not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Johannes Helmes DTSTART;TZID=Europe/Berlin:20160203T100000 DTEND;TZID=Europe/Berlin:20160203T113000 DTSTAMP:20260527T090434Z UID:0000000771@events.thp.uni-koeln.de DESCRIPTION:Johannes Helmes\n\nBoson fermion duality in corner entanglemen t entropies of free field theories\n\n\n\nContact Person: not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Yoran Tournois DTSTART;TZID=Europe/Berlin:20160210T100000 DTEND;TZID=Europe/Berlin:20160210T113000 DTSTAMP:20260527T090434Z UID:0000000772@events.thp.uni-koeln.de DESCRIPTION:Yoran Tournois\n\nProperties of non-abelian excitations in the fractional quantum Hall effect\n\n\n\nContact Person: not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Carsten Bauer DTSTART;TZID=Europe/Berlin:20160316T100000 DTEND;TZID=Europe/Berlin:20160316T113000 DTSTAMP:20260527T090434Z UID:0000000829@events.thp.uni-koeln.de DESCRIPTION:Carsten Bauer\, ITP Frankfurt\n\nQuasi-Particle Velocity Renor malization in Graphene\n\n\n\nContact Person: Simon Trebst LOCATION:Seminar Room TP 0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | David Dung DTSTART;TZID=Europe/Berlin:20160323T100000 DTEND;TZID=Europe/Berlin:20160323T113000 DTSTAMP:20260527T090434Z UID:0000000846@events.thp.uni-koeln.de DESCRIPTION:David Dung\, University of Bonn\n\nCoupled Photon Bose-Einstei n Condensates in Variable Potentials\n\n\n\nContact Person: not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dietrich Roscher DTSTART;TZID=Europe/Berlin:20160413T100000 DTEND;TZID=Europe/Berlin:20160413T113000 DTSTAMP:20260527T090434Z UID:0000000862@events.thp.uni-koeln.de DESCRIPTION:Dietrich Roscher\n\nInhomogeneous Phases of Fermionic Systems\ n\n\n\nContact Person: not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | David Lindner + Lukas Gross DTSTART;TZID=Europe/Berlin:20160420T100000 DTEND;TZID=Europe/Berlin:20160420T113000 DTSTAMP:20260527T090434Z UID:0000000851@events.thp.uni-koeln.de DESCRIPTION:David Lindner + Lukas Gross\n\nBachelor Colloquium\n\n\n\nCont act Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Florian Lange DTSTART;TZID=Europe/Berlin:20160427T100000 DTEND;TZID=Europe/Berlin:20160427T113000 DTSTAMP:20260527T090434Z UID:0000000852@events.thp.uni-koeln.de DESCRIPTION:Florian Lange\n\nWeakly driven many-particle quantum systems\n \n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Max Gerlach DTSTART;TZID=Europe/Berlin:20160511T100000 DTEND;TZID=Europe/Berlin:20160511T113000 DTSTAMP:20260527T090434Z UID:0000000854@events.thp.uni-koeln.de DESCRIPTION:Max Gerlach\n\nCompeting orders in a nearly antiferromagnetic metal\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jonathan Lux DTSTART;TZID=Europe/Berlin:20160524T120000 DTEND;TZID=Europe/Berlin:20160524T133000 DTSTAMP:20260527T090434Z UID:0000000887@events.thp.uni-koeln.de DESCRIPTION:Jonathan Lux\n\nFluctuations in and out of equilibrium: Therma lization\, quantum measurements and Coulomb disorder\n\n\n\nContact Person : not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Sarah Schroeter DTSTART;TZID=Europe/Berlin:20160601T100000 DTEND;TZID=Europe/Berlin:20160601T113000 DTSTAMP:20260527T090434Z UID:0000000856@events.thp.uni-koeln.de DESCRIPTION:Sarah Schroeter\n\nSkyrmion Caloritronics\n\n\n\nContact Perso n: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jan Attig DTSTART;TZID=Europe/Berlin:20160608T100000 DTEND;TZID=Europe/Berlin:20160608T113000 DTSTAMP:20260527T090434Z UID:0000000857@events.thp.uni-koeln.de DESCRIPTION:Jan Attig\n\nSpiral Spin Liquids\n\n\n\nContact Person: not sp ecified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tilman Disselkamp DTSTART;TZID=Europe/Berlin:20160615T100000 DTEND;TZID=Europe/Berlin:20160615T113000 DTSTAMP:20260527T090434Z UID:0000000864@events.thp.uni-koeln.de DESCRIPTION:Tilman Disselkamp\n\nSpin textures in spin-orbit entangled Mot t insulators\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jamir Marino DTSTART;TZID=Europe/Berlin:20160622T100000 DTEND;TZID=Europe/Berlin:20160622T113000 DTSTAMP:20260527T090434Z UID:0000000860@events.thp.uni-koeln.de DESCRIPTION:Jamir Marino\n\nNon-equilibrium quantum criticality: from isol ated systems to driven-dissipative platforms\n\n\n\nContact Person: not sp ecified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Henry Legg DTSTART;TZID=Europe/Berlin:20160629T100000 DTEND;TZID=Europe/Berlin:20160629T113000 DTSTAMP:20260527T090434Z UID:0000000861@events.thp.uni-koeln.de DESCRIPTION:Henry Legg\n\nAnisotropic magnetoresistance from the surface o f disordered topological insulators\n\n\n\nContact Person: not specified LOCATION:Seminar room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Stefan Wolff DTSTART;TZID=Europe/Berlin:20160706T100000 DTEND;TZID=Europe/Berlin:20160706T113000 DTSTAMP:20260527T090434Z UID:0000000865@events.thp.uni-koeln.de DESCRIPTION:Stefan Wolff\, Uni Bonn\n\nDissipative time evolution of a chi ral state after a quantum quench\n\n\n\nContact Person: Jan Gelhausen LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Robert Bamler DTSTART;TZID=Europe/Berlin:20160711T123000 DTEND;TZID=Europe/Berlin:20160711T140000 DTSTAMP:20260527T090434Z UID:0000000914@events.thp.uni-koeln.de DESCRIPTION:Robert Bamler\n\nPhase-Space Berry Phases in Chiral Magnets: S kyrmion Charge\, Hall Effect\, and Dynamics of Magnetic Skyrmions\n\n\n\nC ontact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Zala Lenarcic DTSTART;TZID=Europe/Berlin:20160720T100000 DTEND;TZID=Europe/Berlin:20160720T113000 DTSTAMP:20260527T090434Z UID:0000000855@events.thp.uni-koeln.de DESCRIPTION:Zala Lenarcic\n\nReviving the integrability\n\n\n\nContact Per son: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tim Eschmann DTSTART;TZID=Europe/Berlin:20160812T140000 DTEND;TZID=Europe/Berlin:20160812T153000 DTSTAMP:20260527T090434Z UID:0000000927@events.thp.uni-koeln.de DESCRIPTION:Tim Eschmann\n\nTBA\n\n\n\nContact Person: not specified LOCATION:Seminar Room TP 0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Loris M. Cangemi DTSTART;TZID=Europe/Berlin:20160824T100000 DTEND;TZID=Europe/Berlin:20160824T113000 DTSTAMP:20260527T090434Z UID:0000000935@events.thp.uni-koeln.de DESCRIPTION:Loris M. Cangemi\, University of Naples\n\nCharge transport in organic semiconductors: theory and simulation\n\n\n\nContact Person: Ralf Bulla LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Emilio Torres DTSTART;TZID=Europe/Berlin:20161012T100000 DTEND;TZID=Europe/Berlin:20161012T113000 DTSTAMP:20260527T090434Z UID:0000000916@events.thp.uni-koeln.de DESCRIPTION:Emilio Torres\n\nDualities\n\n\n\nContact Person: not specifie d LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Peter Broecker DTSTART;TZID=Europe/Berlin:20161019T100000 DTEND;TZID=Europe/Berlin:20161019T113000 DTSTAMP:20260527T090434Z UID:0000000951@events.thp.uni-koeln.de DESCRIPTION:Peter Broecker\n\nMachine learning of quantum phases of matter \n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Michael Buchhold DTSTART;TZID=Europe/Berlin:20161026T100000 DTEND;TZID=Europe/Berlin:20161026T113000 DTSTAMP:20260527T090434Z UID:0000000952@events.thp.uni-koeln.de DESCRIPTION:Michael Buchhold\n\nExploring Non-Equilibrium Phase Transition s in Driven Rydberg Systems\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jan Mueller DTSTART;TZID=Europe/Berlin:20161102T100000 DTEND;TZID=Europe/Berlin:20161102T113000 DTSTAMP:20260527T090434Z UID:0000000953@events.thp.uni-koeln.de DESCRIPTION:Jan Mueller\n\nHelices and Skyrmions\n\n\n\nContact Person: no t specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Henry Legg DTSTART;TZID=Europe/Berlin:20161109T100000 DTEND;TZID=Europe/Berlin:20161109T113000 DTSTAMP:20260527T090434Z UID:0000000954@events.thp.uni-koeln.de DESCRIPTION:Henry Legg\n\nSpin-liquid RKKY\n\n\n\nContact Person: not spec ified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jan Gelhausen DTSTART;TZID=Europe/Berlin:20161123T100000 DTEND;TZID=Europe/Berlin:20161123T113000 DTSTAMP:20260527T090434Z UID:0000000955@events.thp.uni-koeln.de DESCRIPTION:Jan Gelhausen\n\nQuantum-optical magnets with competing short- and long-range interactions: Rydberg-dressed spin lattice in an optical c avity\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Johannes Lang DTSTART;TZID=Europe/Berlin:20161130T100000 DTEND;TZID=Europe/Berlin:20161130T113000 DTSTAMP:20260527T090434Z UID:0000000915@events.thp.uni-koeln.de DESCRIPTION:Johannes Lang\, TU Munich\n\nCritical relaxation in open syste ms without quasiparticles\n\n\n\nContact Person: Sebastian Diehl LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Johannes Helmes DTSTART;TZID=Europe/Berlin:20161202T090000 DTEND;TZID=Europe/Berlin:20161202T110000 DTSTAMP:20260527T090434Z UID:0000000997@events.thp.uni-koeln.de DESCRIPTION:Johannes Helmes\n\nAn entanglement perspective on phase transi tions\, conventional and topological order (PhD Defense)\n\n\n\nContact Pe rson: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tim Eschmann DTSTART;TZID=Europe/Berlin:20161221T100000 DTEND;TZID=Europe/Berlin:20161221T113000 DTSTAMP:20260527T090434Z UID:0000000959@events.thp.uni-koeln.de DESCRIPTION:Tim Eschmann\n\nQuantum Monte Carlo Simulations on Kitaev Syst ems\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Maria Hermanns DTSTART;TZID=Europe/Berlin:20170111T100000 DTEND;TZID=Europe/Berlin:20170111T113000 DTSTAMP:20260527T090434Z UID:0000000960@events.thp.uni-koeln.de DESCRIPTION:Maria Hermanns\n\nNon-abelian hierarchies\n\n\n\nContact Perso n: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Philipp Weiss DTSTART;TZID=Europe/Berlin:20170125T100000 DTEND;TZID=Europe/Berlin:20170125T113000 DTSTAMP:20260527T090434Z UID:0000000961@events.thp.uni-koeln.de DESCRIPTION:Philipp Weiss\n\nNoisy Boltzmann equations\n\n\n\nContact Pers on: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Finn Lasse Buessen DTSTART;TZID=Europe/Berlin:20170201T100000 DTEND;TZID=Europe/Berlin:20170201T113000 DTSTAMP:20260527T090434Z UID:0000000964@events.thp.uni-koeln.de DESCRIPTION:Finn Lasse Buessen\n\nSpin liquids and competing magnetic orde rs in three-dimensional frustrated magnets\n\n\n\nContact Person: not spec ified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jan Attig DTSTART;TZID=Europe/Berlin:20170208T100000 DTEND;TZID=Europe/Berlin:20170208T113000 DTSTAMP:20260527T090434Z UID:0000000962@events.thp.uni-koeln.de DESCRIPTION:Jan Attig\n\nClassical Spin Spirals and Free Fermions\n\n\n\nC ontact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dennis Wawrzik DTSTART;TZID=Europe/Berlin:20170503T100000 DTEND;TZID=Europe/Berlin:20170503T113000 DTSTAMP:20260527T090434Z UID:0000001056@events.thp.uni-koeln.de DESCRIPTION:Dennis Wawrzik\n\nTopological semimetals and insulators in thr ee-dimensional honeycomb materials\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Vatsal Dwivedi DTSTART;TZID=Europe/Berlin:20170510T100000 DTEND;TZID=Europe/Berlin:20170510T113000 DTSTAMP:20260527T090434Z UID:0000001057@events.thp.uni-koeln.de DESCRIPTION:Vatsal Dwivedi\n\nTopological phases\, Riemann surfaces and ge neralized transfer matrices\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dietrich Roscher DTSTART;TZID=Europe/Berlin:20170517T100000 DTEND;TZID=Europe/Berlin:20170517T113000 DTSTAMP:20260527T090434Z UID:0000001061@events.thp.uni-koeln.de DESCRIPTION:Dietrich Roscher\n\nSpin Liquids and FRG Diagrammatics\n\n\n\n Contact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Michael Scherer DTSTART;TZID=Europe/Berlin:20170524T100000 DTEND;TZID=Europe/Berlin:20170524T113000 DTSTAMP:20260527T090434Z UID:0000001059@events.thp.uni-koeln.de DESCRIPTION:Michael Scherer\n\nInteractions and phase transitions in two-d imensional Dirac materials and fermion-induced quantum criticality\n\n\n\n Contact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Yoran Tournois DTSTART;TZID=Europe/Berlin:20170531T100000 DTEND;TZID=Europe/Berlin:20170531T113000 DTSTAMP:20260527T090434Z UID:0000001060@events.thp.uni-koeln.de DESCRIPTION:Yoran Tournois\n\nMatrix product states and the fractional qua ntum Hall effect\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tim Eschmann DTSTART;TZID=Europe/Berlin:20170621T100000 DTEND;TZID=Europe/Berlin:20170621T113000 DTSTAMP:20260527T090434Z UID:0000001062@events.thp.uni-koeln.de DESCRIPTION:Tim Eschmann\n\nThermodynamics of 3D Kitaev Spin Liquids\n\n\n \nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Carsten Bauer DTSTART;TZID=Europe/Berlin:20170628T100000 DTEND;TZID=Europe/Berlin:20170628T113000 DTSTAMP:20260527T090434Z UID:0000001063@events.thp.uni-koeln.de DESCRIPTION:Carsten Bauer\n\nQuantum critical metals and machine learning\ n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Bernhard Ihrig DTSTART;TZID=Europe/Berlin:20170705T100000 DTEND;TZID=Europe/Berlin:20170705T113000 DTSTAMP:20260527T090434Z UID:0000001064@events.thp.uni-koeln.de DESCRIPTION:Bernhard Ihrig \, University of Heidelberg\n\nChiral critical behavior of Dirac materials: Gross-Neveu-Yukawa model at three loops\n\n\n \nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Yasu Kato DTSTART;TZID=Europe/Berlin:20170712T100000 DTEND;TZID=Europe/Berlin:20170712T113000 DTSTAMP:20260527T090434Z UID:0000001112@events.thp.uni-koeln.de DESCRIPTION:Yasu Kato\, University of Tokyo\n\nA Monte-Carlo study of thre e-dimensional chiral spin liquids in anisotropic hypernonagon Kitaev model s\n\nThe Kitaev model is an exactly-soluble quantum spin model with frustr ation. Although the original model was defined on a honeycomb lattice\, th e model has been extended to various tricoordinate lattices without losing the exact solubility. We analyze two different anisotropic limits of the Kitaev model on a three-dimensional lattice comprising nine-site elementar y loops\, which we call the hypernonagon lattice. In both cases\, the effe ctive Ising-type models retain the time-reversal symmetry\, suggesting tha t the ground states are chiral spin liquids. Using Monte Carlo simulations that respect the local and global constraints on the Ising variables repr esenting Z2 fluxes\, we show that there is a first-order phase transition at a finite temperature in each case\, but in a different manner.\n\nConta ct Person: Simon Trebst LOCATION:Seminarraum E0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Lukas Heinen DTSTART;TZID=Europe/Berlin:20170719T100000 DTEND;TZID=Europe/Berlin:20170719T113000 DTSTAMP:20260527T090434Z UID:0000001066@events.thp.uni-koeln.de DESCRIPTION:Lukas Heinen\n\nRotating Skyrmion Lattices\n\n\n\nContact Pers on: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Terenz Feng DTSTART;TZID=Europe/Berlin:20170720T160000 DTEND;TZID=Europe/Berlin:20170720T170000 DTSTAMP:20260527T090434Z UID:0000001118@events.thp.uni-koeln.de DESCRIPTION:Terenz Feng\n\nMaster defense: Decoherence of Driven Majorana Qubits\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Thomas Boemerich DTSTART;TZID=Europe/Berlin:20170727T153000 DTEND;TZID=Europe/Berlin:20170727T160000 DTSTAMP:20260527T090434Z UID:0000001116@events.thp.uni-koeln.de DESCRIPTION:Thomas Boemerich\n\nBachelor's Colloquium\n\n\n\nContact Perso n: not specified LOCATION:Seminar Room of the Institute for Theoretical Physics END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Marcel Gievers DTSTART;TZID=Europe/Berlin:20170727T150000 DTEND;TZID=Europe/Berlin:20170727T153000 DTSTAMP:20260527T090434Z UID:0000001117@events.thp.uni-koeln.de DESCRIPTION:Marcel Gievers\n\nBachelor's Colloquium\n\n\n\nContact Person: not specified LOCATION:Seminar Room of the Institute for Theoretical Physics END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tobias Mueller DTSTART;TZID=Europe/Berlin:20170927T100000 DTEND;TZID=Europe/Berlin:20170927T110000 DTSTAMP:20260527T090434Z UID:0000001135@events.thp.uni-koeln.de DESCRIPTION:Tobias Mueller\, University of Wuerzburg\n\nDynamical measurem ent of the interaction strength in helical Luttinger Liquids\n\nIn one-dim ensional Luttinger liquids the interaction strength is determined by the L uttinger Parameter K. It proves proves difficult to be measured\, as it is usually hidden in power-law dependencies on temperature or bias. In this talk I will propose a setup\, which allows a dynamical measurement of this parameter.\n\nIn this talk we will\, based on an equation of motion descr iption of Luttinger Liquids\, discuss a setup with a capacitive gate\, whi ch allows to probe the interactions directly. In this setup\, an expressio n for the frequency dependence of the conductivity can be obtained\, from which we can extract K directly and from a low frequency expansion. Furthe rmore the influence of the precise form of the change in interactions at t he contacts is examined using the formalism. As a perfectly suited system to test the predictions\, we will shortly discuss helical edge states of t opological insulators.\n\n\nContact Person: Simon Trebst LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jan Gelhausen DTSTART;TZID=Europe/Berlin:20171011T100000 DTEND;TZID=Europe/Berlin:20171011T113000 DTSTAMP:20260527T090434Z UID:0000001140@events.thp.uni-koeln.de DESCRIPTION:Jan Gelhausen\n\nDissipative Dicke Model with Collective Atomi c Decay: Bistability\, Noise-Driven Activation and Non-Thermal First Order Superradiance Transition\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tathagata Chowdhury DTSTART;TZID=Europe/Berlin:20171025T103000 DTEND;TZID=Europe/Berlin:20171025T120000 DTSTAMP:20260527T090434Z UID:0000001143@events.thp.uni-koeln.de DESCRIPTION:Tathagata Chowdhury\n\nLong range entanglement near a Kondo-de struction quantum critical point\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tilman Disselkamp DTSTART;TZID=Europe/Berlin:20171026T110000 DTEND;TZID=Europe/Berlin:20171026T120000 DTSTAMP:20260527T090434Z UID:0000001172@events.thp.uni-koeln.de DESCRIPTION:Tilman Disselkamp\n\nSpin textures in spin-orbit entangled Mot t insulators\n\nMaster Colloquium\n\nContact Person: not specified LOCATION:Seminar room of the Institute of Physics 2 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Yuval Vinkler DTSTART;TZID=Europe/Berlin:20171108T100000 DTEND;TZID=Europe/Berlin:20171108T113000 DTSTAMP:20260527T090434Z UID:0000001145@events.thp.uni-koeln.de DESCRIPTION:Yuval Vinkler\n\ntba\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jan Attig DTSTART;TZID=Europe/Berlin:20171115T100000 DTEND;TZID=Europe/Berlin:20171115T113000 DTSTAMP:20260527T090434Z UID:0000001146@events.thp.uni-koeln.de DESCRIPTION:Jan Attig\n\nTwo-stage multipolar ordering in PrTM2Al20 Kondo materials\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Henry Legg DTSTART;TZID=Europe/Berlin:20171122T100000 DTEND;TZID=Europe/Berlin:20171122T113000 DTSTAMP:20260527T090434Z UID:0000001147@events.thp.uni-koeln.de DESCRIPTION:Henry Legg\n\nTransport in 2D and 3D Dirac materials\n\n\n\nCo ntact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dennis Wawrzik DTSTART;TZID=Europe/Berlin:20171127T153000 DTEND;TZID=Europe/Berlin:20171127T163000 DTSTAMP:20260527T090434Z UID:0000001179@events.thp.uni-koeln.de DESCRIPTION:Dennis Wawrzik\n\nTopological semimetals and insulators in thr ee-dimensional honeycomb materials (Masterkolloquium)\n\n\n\nContact Perso n: not specified LOCATION:Seminarraum E0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ciaran Hickey DTSTART;TZID=Europe/Berlin:20171129T100000 DTEND;TZID=Europe/Berlin:20171129T113000 DTSTAMP:20260527T090434Z UID:0000001148@events.thp.uni-koeln.de DESCRIPTION:Ciaran Hickey\n\nCuprates in High Magnetic Fields: Pseudo-Answ ers to Pseudogap Questions\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Federico Tonielli DTSTART;TZID=Europe/Berlin:20171206T100000 DTEND;TZID=Europe/Berlin:20171206T113000 DTSTAMP:20260527T090434Z UID:0000001150@events.thp.uni-koeln.de DESCRIPTION:Federico Tonielli\n\nOrthogonality Catastrophe in open quantum systems?\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Bernd Grosse Juettermann DTSTART;TZID=Europe/Berlin:20171208T140000 DTEND;TZID=Europe/Berlin:20171208T153000 DTSTAMP:20260527T090434Z UID:0000001183@events.thp.uni-koeln.de DESCRIPTION:Bernd Grosse Juettermann\n\nMagnetic skyrmions in oscillating magnetic fields\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Florian Lange DTSTART;TZID=Europe/Berlin:20171220T100000 DTEND;TZID=Europe/Berlin:20171220T113000 DTSTAMP:20260527T090434Z UID:0000001141@events.thp.uni-koeln.de DESCRIPTION:Florian Lange\n\nGeneralized Gibbs ensembles in open quantum s ystems\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Fabian Holling DTSTART;TZID=Europe/Berlin:20171222T140000 DTEND;TZID=Europe/Berlin:20171222T150000 DTSTAMP:20260527T090434Z UID:0000001182@events.thp.uni-koeln.de DESCRIPTION:Fabian Holling\n\nNon-equilibrium criticality of an Ising fiel d theory with competing unitary and relaxational dynamics (Master colloqiu m)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Vivek Lohany DTSTART;TZID=Europe/Berlin:20180110T100000 DTEND;TZID=Europe/Berlin:20180110T113000 DTSTAMP:20260527T090434Z UID:0000001152@events.thp.uni-koeln.de DESCRIPTION:Vivek Lohany\n\ntba\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ori Alberton DTSTART;TZID=Europe/Berlin:20180117T100000 DTEND;TZID=Europe/Berlin:20180117T113000 DTSTAMP:20260527T090434Z UID:0000001151@events.thp.uni-koeln.de DESCRIPTION:Ori Alberton\n\nPhase transitions between Rydberg-polariton BE Cs close to a Feshbach resonance\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jonas Wassmer DTSTART;TZID=Europe/Berlin:20180119T153000 DTEND;TZID=Europe/Berlin:20180119T160000 DTSTAMP:20260527T090434Z UID:0000001200@events.thp.uni-koeln.de DESCRIPTION:Jonas Wassmer \n\nBachelor Kolloquium\n\n\n\nContact Person: S imon Trebst LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Kevin O Brien DTSTART;TZID=Europe/Berlin:20180124T100000 DTEND;TZID=Europe/Berlin:20180124T113000 DTSTAMP:20260527T090434Z UID:0000001154@events.thp.uni-koeln.de DESCRIPTION:Kevin O Brien\n\nThree-dimensional Kitaev Spin Liquids\n\n\n\n Contact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Heinrich Froeml DTSTART;TZID=Europe/Berlin:20180131T100000 DTEND;TZID=Europe/Berlin:20180131T113000 DTSTAMP:20260527T090434Z UID:0000001155@events.thp.uni-koeln.de DESCRIPTION:Heinrich Froeml\n\nLocal Dissipation in Quantum Wires\n\n\n\nC ontact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Zhong-Chao Wei DTSTART;TZID=Europe/Berlin:20180207T100000 DTEND;TZID=Europe/Berlin:20180207T113000 DTSTAMP:20260527T090434Z UID:0000001211@events.thp.uni-koeln.de DESCRIPTION:Zhong-Chao Wei\n\nSign Problem in Quantum Monte Carlo\n\n\n\nC ontact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Vatsal Dwivedi DTSTART;TZID=Europe/Berlin:20180411T100000 DTEND;TZID=Europe/Berlin:20180411T113000 DTSTAMP:20260527T090434Z UID:0000001233@events.thp.uni-koeln.de DESCRIPTION:Vatsal Dwivedi\n\nHigher Order Topological Insulators\n\n\n\nC ontact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jan Attig DTSTART;TZID=Europe/Berlin:20180418T100000 DTEND;TZID=Europe/Berlin:20180418T113000 DTSTAMP:20260527T090434Z UID:0000001234@events.thp.uni-koeln.de DESCRIPTION:Jan Attig\n\nBuilding Majorana fermions out of LEGO\n\n\n\nCon tact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Steven Mathey DTSTART;TZID=Europe/Berlin:20180502T100000 DTEND;TZID=Europe/Berlin:20180502T113000 DTSTAMP:20260527T090434Z UID:0000001236@events.thp.uni-koeln.de DESCRIPTION:Steven Mathey\n\nPeriodic drive in open Floquet systems destro ys the equilibrium critical physics\n\nWe investigate phase transitions in rapidly periodically driven\, open quantum systems within a complex boson ic order parameter model with phase rotation symmetric drive. The infinite ly rapidly driven limit is effectively stationary and exhibits a second or der phase transition. Based on a Floquet renormalization group analysis\, we reveal a universal mechanism showing that fluctuations associated to th e first rotating wave correction mask the critical physics associated with the equilibrium fixed point. The critical exponents of the infinitely rap idly driven fixed point can be probed upon smoothly approaching it\, in so me analogy to the opposite limit of slowly driven systems within the Kibbl e-Zurek mechanism.\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jonas Rath DTSTART;TZID=Europe/Berlin:20180507T160000 DTEND;TZID=Europe/Berlin:20180507T163000 DTSTAMP:20260527T090434Z UID:0000001270@events.thp.uni-koeln.de DESCRIPTION:Jonas Rath\n\nBachelor Kolloquium\n\n\n\nContact Person: not s pecified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ciaran Hickey DTSTART;TZID=Europe/Berlin:20180509T100000 DTEND;TZID=Europe/Berlin:20180509T113000 DTSTAMP:20260527T090434Z UID:0000001237@events.thp.uni-koeln.de DESCRIPTION:Ciaran Hickey\n\nDestroying Kitaev's Quantum Spin Liquid: A Ho w-To Guide\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tim Eschmann DTSTART;TZID=Europe/Berlin:20180516T100000 DTEND;TZID=Europe/Berlin:20180516T113000 DTSTAMP:20260527T090434Z UID:0000001238@events.thp.uni-koeln.de DESCRIPTION:Tim Eschmann\n\nThermodynamics of a gauge-frustrated Kitaev sp in liquid\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Philipp Weiss DTSTART;TZID=Europe/Berlin:20180606T100000 DTEND;TZID=Europe/Berlin:20180606T113000 DTSTAMP:20260527T090434Z UID:0000001240@events.thp.uni-koeln.de DESCRIPTION:Philipp Weiss\n\nLuttinger liquid in a box\n\n\n\nContact Pers on: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Lukas Heinen DTSTART;TZID=Europe/Berlin:20180613T100000 DTEND;TZID=Europe/Berlin:20180613T113000 DTSTAMP:20260527T090434Z UID:0000001241@events.thp.uni-koeln.de DESCRIPTION:Lukas Heinen\n\nNew Chiral Magnetic Phases Stabilized by Cubic Anisotropy\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Alessio Chiocchetta DTSTART;TZID=Europe/Berlin:20180620T100000 DTEND;TZID=Europe/Berlin:20180620T113000 DTSTAMP:20260527T090434Z UID:0000001239@events.thp.uni-koeln.de DESCRIPTION:Alessio Chiocchetta\n\nFluctuation-induced quantum Zeno effect \n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Zala Lenarcic DTSTART;TZID=Europe/Berlin:20180627T100000 DTEND;TZID=Europe/Berlin:20180627T113000 DTSTAMP:20260527T090434Z UID:0000001243@events.thp.uni-koeln.de DESCRIPTION:Zala Lenarcic\n\nActivating many-body localization in solids b y driving with light\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Kai Meinerz DTSTART;TZID=Europe/Berlin:20180704T100000 DTEND;TZID=Europe/Berlin:20180704T113000 DTSTAMP:20260527T090434Z UID:0000001244@events.thp.uni-koeln.de DESCRIPTION:Kai Meinerz\n\nMachine learning of phase transition and monte carlo methods\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Bahareh Ghannad DTSTART;TZID=Europe/Berlin:20180711T100000 DTEND;TZID=Europe/Berlin:20180711T113000 DTSTAMP:20260527T090434Z UID:0000001246@events.thp.uni-koeln.de DESCRIPTION:Bahareh Ghannad\n\nHow I learned to stop worrying and love cla ssical Kitaev magnets\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.01\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Nils Bruch DTSTART;TZID=Europe/Berlin:20180716T140000 DTEND;TZID=Europe/Berlin:20180716T150000 DTSTAMP:20260527T090434Z UID:0000001301@events.thp.uni-koeln.de DESCRIPTION:Nils Bruch\n\nLong distance tails in a current carrying wire ( Bachelor Kolloquium)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Federico Tonielli DTSTART;TZID=Europe/Berlin:20180718T100000 DTEND;TZID=Europe/Berlin:20180718T113000 DTSTAMP:20260527T090434Z UID:0000001245@events.thp.uni-koeln.de DESCRIPTION:Federico Tonielli\n\nsignatures of topology in non-equilibrium steady states: bulk vs boundary\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Florian Michael DTSTART;TZID=Europe/Berlin:20180720T140000 DTEND;TZID=Europe/Berlin:20180720T143000 DTSTAMP:20260527T090434Z UID:0000001303@events.thp.uni-koeln.de DESCRIPTION:Florian Michael\n\nSelf-learning Monte Carlo Simulation (Bache lor Colloquium)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dominik Kiese DTSTART;TZID=Europe/Berlin:20180725T100000 DTEND;TZID=Europe/Berlin:20180725T113000 DTSTAMP:20260527T090434Z UID:0000001297@events.thp.uni-koeln.de DESCRIPTION:Dominik Kiese\n\nPseudofermion Functional Renormalization Grou p Perspective on Frustrated Magnets\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Benjamin Heil DTSTART;TZID=Europe/Berlin:20180727T090000 DTEND;TZID=Europe/Berlin:20180727T103000 DTSTAMP:20260527T090434Z UID:0000001308@events.thp.uni-koeln.de DESCRIPTION:Benjamin Heil\n\nThe Stability of Skyrmions in Chiral Magnets & Frustrated Magnets (Master Colloquium)\n\n\n\nContact Person: not specif ied LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Leonard Kaufhold DTSTART;TZID=Europe/Berlin:20180913T160000 DTEND;TZID=Europe/Berlin:20180913T173000 DTSTAMP:20260527T090434Z UID:0000001327@events.thp.uni-koeln.de DESCRIPTION:Leonard Kaufhold\n\nCold Atoms on Top of a Skyrmion Lattice (B achelor Kolloquium)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | David Mikhail DTSTART;TZID=Europe/Berlin:20180928T100000 DTEND;TZID=Europe/Berlin:20180928T123000 DTSTAMP:20260527T090434Z UID:0000001333@events.thp.uni-koeln.de DESCRIPTION:David Mikhail\n\nQuantum multicritical behavior and emergent s ymmetry in (2+1)-dimensional Dirac systems (Master Kolloquium)\n\n\n\nCont act Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jan Masell DTSTART;TZID=Europe/Berlin:20181024T100000 DTEND;TZID=Europe/Berlin:20181024T113000 DTSTAMP:20260527T090434Z UID:0000001338@events.thp.uni-koeln.de DESCRIPTION:Jan Masell\n\nSpeed limits for skyrmions\n\n\n\nContact Person : not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ciaran Hickey DTSTART;TZID=Europe/Berlin:20181031T100000 DTEND;TZID=Europe/Berlin:20181031T113000 DTSTAMP:20260527T090434Z UID:0000001339@events.thp.uni-koeln.de DESCRIPTION:Ciaran Hickey\n\nA Menagerie of Material Mysteries\n\n\n\nCont act Person: Ciaran Hickey LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Finn Lasse Buessen DTSTART;TZID=Europe/Berlin:20181114T100000 DTEND;TZID=Europe/Berlin:20181114T113000 DTSTAMP:20260527T090434Z UID:0000001345@events.thp.uni-koeln.de DESCRIPTION:Finn Lasse Buessen\n\nChiral Kagome magnets (Bachelor defense\ , 2nd attempt)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dominik Kiese DTSTART;TZID=Europe/Berlin:20181205T100000 DTEND;TZID=Europe/Berlin:20181205T113000 DTSTAMP:20260527T090434Z UID:0000001350@events.thp.uni-koeln.de DESCRIPTION:Dominik Kiese\n\nA functional renormalization group perspectiv e on frustrated magnetism (Master Kolloquium)\n\n\n\nContact Person: not s pecified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Steven Mathey DTSTART;TZID=Europe/Berlin:20181212T100000 DTEND;TZID=Europe/Berlin:20181212T113000 DTSTAMP:20260527T090434Z UID:0000001351@events.thp.uni-koeln.de DESCRIPTION:Steven Mathey\n\nKibble-Zurek mechanism: from phenomenology to adiabatic RG flow equations\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Bernd Grosse Juettermann DTSTART;TZID=Europe/Berlin:20181217T160000 DTEND;TZID=Europe/Berlin:20181217T173000 DTSTAMP:20260527T090434Z UID:0000001368@events.thp.uni-koeln.de DESCRIPTION:Bernd Grosse Juettermann\n\nDriving Magnetic Skyrmions by Osci llating Magnetic Fields (Master Kolloquium)\n\n\n\nContact Person: not spe cified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Kai Meinerz DTSTART;TZID=Europe/Berlin:20181219T100000 DTEND;TZID=Europe/Berlin:20181219T113000 DTSTAMP:20260527T090434Z UID:0000001352@events.thp.uni-koeln.de DESCRIPTION:Kai Meinerz\n\nSelf-learning Monte Carlo Methods (Master Kollo quium)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Zihao Gao DTSTART;TZID=Europe/Berlin:20190109T100000 DTEND;TZID=Europe/Berlin:20190109T113000 DTSTAMP:20260527T090434Z UID:0000001356@events.thp.uni-koeln.de DESCRIPTION:Zihao Gao\n\nDecoherence of Majorana edge modes under adiabati c drives\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jan Attig DTSTART;TZID=Europe/Berlin:20190116T100000 DTEND;TZID=Europe/Berlin:20190116T113000 DTSTAMP:20260527T090434Z UID:0000001346@events.thp.uni-koeln.de DESCRIPTION:Jan Attig\n\nHow to model RIXS in Julia - a theorist's approac h\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Bernhard Ihrig DTSTART;TZID=Europe/Berlin:20190123T100000 DTEND;TZID=Europe/Berlin:20190123T113000 DTSTAMP:20260527T090434Z UID:0000001358@events.thp.uni-koeln.de DESCRIPTION:Bernhard Ihrig\n\nA brief introduction to the renormalization group and application to dualities in deconfined quantum criticality\n\n\n \nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Bahar Ghannad DTSTART;TZID=Europe/Berlin:20190130T100000 DTEND;TZID=Europe/Berlin:20190130T113000 DTSTAMP:20260527T090434Z UID:0000001359@events.thp.uni-koeln.de DESCRIPTION:Bahar Ghannad\n\nThermodynamics of Classical Kitaev magnets (M aster colloquium)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Maike Schön DTSTART;TZID=Europe/Berlin:20190226T140000 DTEND;TZID=Europe/Berlin:20190226T153000 DTSTAMP:20260527T090434Z UID:0000001387@events.thp.uni-koeln.de DESCRIPTION:Maike Schön\n\nPhysical properties of entangled Majorana ferm ion states on textured surfaces of topological insulators\n\n\n\nContact P erson: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tim Eschmann DTSTART;TZID=Europe/Berlin:20190410T100000 DTEND;TZID=Europe/Berlin:20190410T113000 DTSTAMP:20260527T090434Z UID:0000001401@events.thp.uni-koeln.de DESCRIPTION:Tim Eschmann\n\nChiral spin liquids in (generalized) Kitaev sy stems\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Fabian Kugler DTSTART;TZID=Europe/Berlin:20190417T100000 DTEND;TZID=Europe/Berlin:20190417T113000 DTSTAMP:20260527T090434Z UID:0000001376@events.thp.uni-koeln.de DESCRIPTION:Fabian Kugler\, TU Muenchen\n\nMultiloop functional renormaliz ation group that sums up all parquet diagrams\n\nThe functional renormaliz ation group (fRG) is a versatile\, quantum-field-theoretical formulation o f the powerful RG idea and has seen a large number of successful applicati ons. The main limitation of this framework is the truncation of the hierar chy of flow equations\, where typically effective three-particle interacti ons are neglected altogether. Here\, we first present multiloop fRG flow e quations [1] as a way of simulating all contributions of the six-point ver tex that can be kept efficiently. The resulting flow consists of successiv e one-loop calculations and sums up a complete class of diagrams. This res tores the independence of the results from the choice of regulator and ena bles improvement of many fRG computations. Second\, we show how to derive the multiloop flow equations from the self-consistent parquet relations on an algebraic basis [2]. Using the X-ray-edge singularity as an example\, we introduce the formalism and illustrate our findings with numerical resu lts [3].\n\n[1] F. B. Kugler and J. von Delft\, PRB 97\, 035162 (2018)\n[2 ] F. B. Kugler and J. von Delft\, New J. Phys. 20\, 123029 (2018)\n[3] F. B. Kugler and J. von Delft\, PRL 120\, 057403 (2018)\n\nContact Person: Do minik Kiese LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Kevin O'Brien DTSTART;TZID=Europe/Berlin:20190508T100000 DTEND;TZID=Europe/Berlin:20190508T113000 DTSTAMP:20260527T090434Z UID:0000001394@events.thp.uni-koeln.de DESCRIPTION:Kevin O'Brien\, University of Colgone\n\nThree-Dimensional Kit aev Spin Liquids (PhD defense)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Vatsal Dwivedi DTSTART;TZID=Europe/Berlin:20190515T100000 DTEND;TZID=Europe/Berlin:20190515T113000 DTSTAMP:20260527T090434Z UID:0000001402@events.thp.uni-koeln.de DESCRIPTION:Vatsal Dwivedi\n\nNon-Hermitian systems and topology\n\n\n\nCo ntact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tathagata Chowdury DTSTART;TZID=Europe/Berlin:20190529T100000 DTEND;TZID=Europe/Berlin:20190529T113000 DTSTAMP:20260527T090434Z UID:0000001404@events.thp.uni-koeln.de DESCRIPTION:Tathagata Chowdury\n\nCompetition between Kondo and Kitaev Phy sics in a frustrated impurity coupled to a fermionic bath\n\n\n\nContact P erson: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Vaishnavi Jayakumar DTSTART;TZID=Europe/Berlin:20190619T100000 DTEND;TZID=Europe/Berlin:20190619T113000 DTSTAMP:20260527T090434Z UID:0000001405@events.thp.uni-koeln.de DESCRIPTION:Vaishnavi Jayakumar\n\nSignatures of Lifshitz Transitions in N eutral Fermi Surfaces\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Atif Javed DTSTART;TZID=Europe/Berlin:20190626T100000 DTEND;TZID=Europe/Berlin:20190626T113000 DTSTAMP:20260527T090434Z UID:0000001406@events.thp.uni-koeln.de DESCRIPTION:Atif Javed\n\nTopological Edge States in a Dissipative System\ n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Martin Gembe DTSTART;TZID=Europe/Berlin:20190628T140000 DTEND;TZID=Europe/Berlin:20190628T153000 DTSTAMP:20260527T090434Z UID:0000001407@events.thp.uni-koeln.de DESCRIPTION:Martin Gembe\n\nDynamical Monte Carlo Simulations of Dipolar S pin Ice and Open Floquet Systems\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Thomas Boemerich DTSTART;TZID=Europe/Berlin:20190710T104500 DTEND;TZID=Europe/Berlin:20190710T120000 DTSTAMP:20260527T090434Z UID:0000001408@events.thp.uni-koeln.de DESCRIPTION:Thomas Boemerich\n\nSkyrmions in anomalous quantum Hall system s\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jan Reuter DTSTART;TZID=Europe/Berlin:20190715T110000 DTEND;TZID=Europe/Berlin:20190715T120000 DTSTAMP:20260527T090434Z UID:0000001424@events.thp.uni-koeln.de DESCRIPTION:Jan Reuter\n\nMagnetfeld-Effekte in Spin-Orbit gekoppelten Mot t Isolatoren (B.Sc. Kolloqium)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ankita Negi DTSTART;TZID=Europe/Berlin:20190717T100000 DTEND;TZID=Europe/Berlin:20190717T113000 DTSTAMP:20260527T090434Z UID:0000001427@events.thp.uni-koeln.de DESCRIPTION:Ankita Negi\n\nTransfer Matrices for disordered topological sy stems\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Nikhil Sharma DTSTART;TZID=Europe/Berlin:20190731T100000 DTEND;TZID=Europe/Berlin:20190731T113000 DTSTAMP:20260527T090434Z UID:0000001423@events.thp.uni-koeln.de DESCRIPTION:Nikhil Sharma\n\nLooking for criticality in periodically drive n systems using Hartree approach\n\nI will talk about whether there is cri ticality in periodically driven systems. The motivation is based on the wo rk done in [Phys. Rev. Lett. 122\, 110602 (2019)]. This paper uses an RG a pproach and finds that criticality is absent in periodically driven open s ystems. This is interpreted as a second order phase transition becoming fi rst order because of the drive. I will talk about dynamical classical syst em described by the φ4 theory with O(N) symmetry. I have included fluctua tions in the presence of the periodic drive and calculated the corrections to the mass up to an infinite loop order within the Hartree approach. In the presence of a sufficiently strong periodic drive\, I obtain multiple s olutions for the correlation length [(mass)^(−1/2)]. One of them diverge s at the transition but the other remains finite and hence\, we conclude t hat the drive can indeed suppress criticality in these systems. In order t o make further progress\, I apply Hartree approximation to the φ6 theory\ , which is known to exhibits a first order phase transition. Multiple solu tions for the correlation length emerge in a way that is very similar to t he periodically driven system. This indicates that the transition can be c hanged from second to first order by the periodic drive.\n\nContact Person : not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dennis Hardt DTSTART;TZID=Europe/Berlin:20190816T140000 DTEND;TZID=Europe/Berlin:20190816T153000 DTSTAMP:20260527T090434Z UID:0000001439@events.thp.uni-koeln.de DESCRIPTION:Dennis Hardt\n\nEntropy production in 1D systems regarding the adiabatic limit\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Finn Lasse Buessen DTSTART;TZID=Europe/Berlin:20190823T103000 DTEND;TZID=Europe/Berlin:20190823T120000 DTSTAMP:20260527T090434Z UID:0000001433@events.thp.uni-koeln.de DESCRIPTION:Finn Lasse Buessen\n\nA Functional Renormalization Group Persp ective on Quantum Spin Liquids in Three-Dimensional Frustrated Magnets (Ph D Defense)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Marcel Gievers DTSTART;TZID=Europe/Berlin:20191009T100000 DTEND;TZID=Europe/Berlin:20191009T113000 DTSTAMP:20260527T090434Z UID:0000001443@events.thp.uni-koeln.de DESCRIPTION:Marcel Gievers\n\nTransport in ultracold quantum wires with lo calized dissipation\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Henri Koschke DTSTART;TZID=Europe/Berlin:20191011T140000 DTEND;TZID=Europe/Berlin:20191011T153000 DTSTAMP:20260527T090434Z UID:0000001457@events.thp.uni-koeln.de DESCRIPTION:Henri Koschke\n\nTopological charge pumping in moire heterostr uctures\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Henry Legg DTSTART;TZID=Europe/Berlin:20191016T100000 DTEND;TZID=Europe/Berlin:20191016T113000 DTSTAMP:20260527T090434Z UID:0000001444@events.thp.uni-koeln.de DESCRIPTION:Henry Legg\n\nQuantum confinement in topological insulator nan owires: How topological insulators could (but probably won't) solve Brexit \n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dominik Kiese DTSTART;TZID=Europe/Berlin:20191023T100000 DTEND;TZID=Europe/Berlin:20191023T113000 DTSTAMP:20260527T090434Z UID:0000001445@events.thp.uni-koeln.de DESCRIPTION:Dominik Kiese\n\nEmergence and stability of spin-valley entang led quantum liquids in moire heterostructures\n\n\n\nContact Person: not s pecified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Christoph Berke DTSTART;TZID=Europe/Berlin:20191030T100000 DTEND;TZID=Europe/Berlin:20191030T113000 DTSTAMP:20260527T090434Z UID:0000001446@events.thp.uni-koeln.de DESCRIPTION:Christoph Berke\n\nMagnetic field effects on 2D Kitaev spin li quids\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Carsten Bauer DTSTART;TZID=Europe/Berlin:20191106T100000 DTEND;TZID=Europe/Berlin:20191106T113000 DTSTAMP:20260527T090434Z UID:0000001447@events.thp.uni-koeln.de DESCRIPTION:Carsten Bauer\n\nCollinear antiferromagnetic quantum criticali ty in metals\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Thomas Mueller DTSTART;TZID=Europe/Berlin:20191113T100000 DTEND;TZID=Europe/Berlin:20191113T113000 DTSTAMP:20260527T090434Z UID:0000001448@events.thp.uni-koeln.de DESCRIPTION:Thomas Mueller\n\nResonant Dissipative Tunneling In A Quantum Wire\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Nico Gneist DTSTART;TZID=Europe/Berlin:20191204T100000 DTEND;TZID=Europe/Berlin:20191204T113000 DTSTAMP:20260527T090434Z UID:0000001450@events.thp.uni-koeln.de DESCRIPTION:Nico Gneist\n\nCluster functional renormalization group approa ch to Quantum Spin Liquids\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Frederic Freyer DTSTART;TZID=Europe/Berlin:20191206T140000 DTEND;TZID=Europe/Berlin:20191206T153000 DTSTAMP:20260527T090434Z UID:0000001449@events.thp.uni-koeln.de DESCRIPTION:Frederic Freyer\n\nDeterminental Quantum Monte Carlo for a fla t-band model\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Nina del Ser DTSTART;TZID=Europe/Berlin:20191211T100000 DTEND;TZID=Europe/Berlin:20191211T113000 DTSTAMP:20260527T090434Z UID:0000001451@events.thp.uni-koeln.de DESCRIPTION:Nina del Ser\n\nFloquet dynamics of a chiral magnet\n\n\n\nCon tact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jinhong Park DTSTART;TZID=Europe/Berlin:20191218T100000 DTEND;TZID=Europe/Berlin:20191218T113000 DTSTAMP:20260527T090434Z UID:0000001452@events.thp.uni-koeln.de DESCRIPTION:Jinhong Park\n\nTopological classification of shot noise on fr actional quantum Hall edges\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ankita Negi DTSTART;TZID=Europe/Berlin:20200108T100000 DTEND;TZID=Europe/Berlin:20200108T113000 DTSTAMP:20260527T090434Z UID:0000001453@events.thp.uni-koeln.de DESCRIPTION:Ankita Negi\n\nTransfer Matrix Computations for Disordered Top ological Insulators (MSc Defense)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Martin Gembe DTSTART;TZID=Europe/Berlin:20200115T100000 DTEND;TZID=Europe/Berlin:20200115T113000 DTSTAMP:20260527T090434Z UID:0000001454@events.thp.uni-koeln.de DESCRIPTION:Martin Gembe\n\nDynamical Monte Carlo Simulations with Applica tions in Dipolar Spin Ice and Open Floquet Systems (MSc Defense)\n\n\n\nCo ntact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Thomas Boemerich DTSTART;TZID=Europe/Berlin:20200203T120000 DTEND;TZID=Europe/Berlin:20200203T133000 DTSTAMP:20260527T090434Z UID:0000001489@events.thp.uni-koeln.de DESCRIPTION:Thomas Boemerich\n\nSkyrmions in Twisted Bilayer Graphene: Lat tice Structures and Experimental Signatures (MSc Defense)\n\n\n\nContact P erson: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Vaishnavi Jayakumar DTSTART;TZID=Europe/Berlin:20200226T100000 DTEND;TZID=Europe/Berlin:20200226T113000 DTSTAMP:20260527T090434Z UID:0000001503@events.thp.uni-koeln.de DESCRIPTION:Vaishnavi Jayakumar\n\nLifshitz Transitions in Neutral Fermi S urfaces (MSc Defense)\n\n\n\nContact Person: not specified LOCATION:Seminarraum Alte Theorie END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dennis Hardt DTSTART;TZID=Europe/Berlin:20200310T100000 DTEND;TZID=Europe/Berlin:20200310T113000 DTSTAMP:20260527T090434Z UID:0000001498@events.thp.uni-koeln.de DESCRIPTION:Dennis Hardt\n\nHydrodynamics\, Entropy Production and Long-Ti me Tails (MSc Defense)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.02\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Henri Koschke DTSTART;TZID=Europe/Berlin:20200318T140000 DTEND;TZID=Europe/Berlin:20200318T153000 DTSTAMP:20260527T090434Z UID:0000001508@events.thp.uni-koeln.de DESCRIPTION:Henri Koschke\n\nTopological Charge Pumping in Moire Structure s (MSc Defense)\n\nZoom Meeting: https://us04web.zoom.us/j/990289238?pwd=W EdGR2IvdTk4dlVYdW9lQTRXZUdRQT09\n\nMeeting ID: 990 289 238\nPassword: 0452 04\n\nContact Person: not specified LOCATION:Zoom (https://us04web.zoom.us/j/990289238?pwd=WEdGR2IvdTk4dlVYdW9 lQTRXZUdRQT09) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Alla Bezvershenko DTSTART;TZID=Europe/Berlin:20200408T100000 DTEND;TZID=Europe/Berlin:20200408T113000 DTSTAMP:20260527T090434Z UID:0000001512@events.thp.uni-koeln.de DESCRIPTION:Alla Bezvershenko\n\nInteracting bosons in an optical cavity: fluctuation effects\n\n\n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/861348389?pwd=V2ZiOUZsRDhUemJP aVBwY3BYajdqZz09 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Vivek Lohany DTSTART;TZID=Europe/Berlin:20200415T100000 DTEND;TZID=Europe/Berlin:20200415T113000 DTSTAMP:20260527T090434Z UID:0000001513@events.thp.uni-koeln.de DESCRIPTION:Vivek Lohany\n\nQuantum skyrmions & The Dissipative SYK model (Two short mini-talks)\n\n\n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/861348389?pwd=V2ZiOUZsRDhUemJP aVBwY3BYajdqZz09 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Aprem Joy DTSTART;TZID=Europe/Berlin:20200422T100000 DTEND;TZID=Europe/Berlin:20200422T113000 DTSTAMP:20260527T090434Z UID:0000001514@events.thp.uni-koeln.de DESCRIPTION:Aprem Joy\n\nDynamics of visons in perturbed Kitaev models\n\n \n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/92764409704 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Marcel Gievers DTSTART;TZID=Europe/Berlin:20200429T100000 DTEND;TZID=Europe/Berlin:20200429T113000 DTSTAMP:20260527T090434Z UID:0000001515@events.thp.uni-koeln.de DESCRIPTION:Marcel Gievers\n\nTransport in ultracold quantum wires with a local dissipative impurity (MSc Defense)\n\n\n\nContact Person: not specif ied LOCATION:Zoom ( https://uni-koeln.zoom.us/j/92764409704 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Chae-Yeun Park DTSTART;TZID=Europe/Berlin:20200513T100000 DTEND;TZID=Europe/Berlin:20200513T113000 DTSTAMP:20260527T090434Z UID:0000001517@events.thp.uni-koeln.de DESCRIPTION:Chae-Yeun Park\n\nVariational Quantum Monte-Carlo in Machine L earning Era\n\n\n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/92764409704 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Thomas Müller DTSTART;TZID=Europe/Berlin:20200515T140000 DTEND;TZID=Europe/Berlin:20200515T153000 DTSTAMP:20260527T090434Z UID:0000001526@events.thp.uni-koeln.de DESCRIPTION:Thomas Müller\n\nFinite Sized Dissipative Impurities in Quant um Wires (MSc Defense)\n\n\n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/92764409704 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Zihao Gao DTSTART;TZID=Europe/Berlin:20200519T110000 DTEND;TZID=Europe/Berlin:20200519T123000 DTSTAMP:20260527T090434Z UID:0000001529@events.thp.uni-koeln.de DESCRIPTION:Zihao Gao\n\nDecoherence of Majorana Edge Modes Under Adiabati c Drives (MSc Defense)\n\n\n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/92764409704 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Kai Meinerz DTSTART;TZID=Europe/Berlin:20200520T100000 DTEND;TZID=Europe/Berlin:20200520T113000 DTSTAMP:20260527T090434Z UID:0000001518@events.thp.uni-koeln.de DESCRIPTION:Kai Meinerz\n\nMachine Learning assisted Quantum Error Correct ion\n\n\n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/92764409704 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Philipp Weiss DTSTART;TZID=Europe/Berlin:20200522T140000 DTEND;TZID=Europe/Berlin:20200522T153000 DTSTAMP:20260527T090434Z UID:0000001527@events.thp.uni-koeln.de DESCRIPTION:Philipp Weiss\n\nQuantum Fluctuations and Hydrodynamic Noise i n Low Dimensions (PhD Defense)\n\n\n\nContact Person: not specified LOCATION:Zoom (https://uni-koeln.zoom.us/j/98059918727) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Bjoern Ladewig DTSTART;TZID=Europe/Berlin:20200527T100000 DTEND;TZID=Europe/Berlin:20200527T113000 DTSTAMP:20260527T090434Z UID:0000001516@events.thp.uni-koeln.de DESCRIPTION:Bjoern Ladewig\n\nThe Kibble-Zurek mechanism from different an gles: the transverse XY model and (ir)relevant critical exponents\n\n\n\nC ontact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/92764409704 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Philip Valder DTSTART;TZID=Europe/Berlin:20200626T130000 DTEND;TZID=Europe/Berlin:20200626T143000 DTSTAMP:20260527T090434Z UID:0000001549@events.thp.uni-koeln.de DESCRIPTION:Philip Valder\n\nApplication of the pf-FRG to quantum compass models (BSc Defense)\n\n\n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/92764409704 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Heinrich Froeml DTSTART;TZID=Europe/Berlin:20200626T100000 DTEND;TZID=Europe/Berlin:20200626T113000 DTSTAMP:20260527T090434Z UID:0000001511@events.thp.uni-koeln.de DESCRIPTION:Heinrich Froeml\n\nLocalized Dissipation in Fermionic Quantum Wires (PhD Defense)\n\n\n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/93106356268 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tim Eschmann DTSTART;TZID=Europe/Berlin:20200630T100000 DTEND;TZID=Europe/Berlin:20200630T113000 DTSTAMP:20260527T090434Z UID:0000001531@events.thp.uni-koeln.de DESCRIPTION:Tim Eschmann\n\nThermodynamics of Kitaev Spin Liquids (PhD Def ense)\n\n\n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/92182487509 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Bernhard Ihrig DTSTART;TZID=Europe/Berlin:20200701T100000 DTEND;TZID=Europe/Berlin:20200701T113000 DTSTAMP:20260527T090434Z UID:0000001519@events.thp.uni-koeln.de DESCRIPTION:Bernhard Ihrig\n\nWalking from deconfined quantum criticality to the 3-states Potts model\n\n\n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/92764409704 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Maksimilian Usoltcev DTSTART;TZID=Europe/Berlin:20200817T100000 DTEND;TZID=Europe/Berlin:20200817T113000 DTSTAMP:20260527T090434Z UID:0000001556@events.thp.uni-koeln.de DESCRIPTION:Maksimilian Usoltcev\n\nCharge Puddles in Topological Insulato r Nanowires (BSc Kolloquium)\n\n\n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/97792872540 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Imane El Achchi DTSTART;TZID=Europe/Berlin:20200819T100000 DTEND;TZID=Europe/Berlin:20200819T113000 DTSTAMP:20260527T090434Z UID:0000001555@events.thp.uni-koeln.de DESCRIPTION:Imane El Achchi\n\nFractional topological charges in magnetic textures (BSc Kolloquium)\n\n\n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/92764409704 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Alla Bezvershenko DTSTART;TZID=Europe/Berlin:20200827T100000 DTEND;TZID=Europe/Berlin:20200827T113000 DTSTAMP:20260527T090434Z UID:0000001553@events.thp.uni-koeln.de DESCRIPTION:Alla Bezvershenko\n\nDicke transition in open many-body system s (MSc Defense)\n\n\n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/92764409704 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Lukas Heinen DTSTART;TZID=Europe/Berlin:20201021T100000 DTEND;TZID=Europe/Berlin:20201021T113000 DTSTAMP:20260527T090434Z UID:0000001562@events.thp.uni-koeln.de DESCRIPTION:Lukas Heinen\n\nChiral Magnets in and out of Equilibrium (PhD Defense)\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/96447196353 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Felix Henschke DTSTART;TZID=Europe/Berlin:20201028T100000 DTEND;TZID=Europe/Berlin:20201028T113000 DTSTAMP:20260527T090434Z UID:0000001564@events.thp.uni-koeln.de DESCRIPTION:Felix Henschke\n\nTensor network calculation of classical frus trated systems\n\nWe discuss how the Tensor Network representation of clas sical statistical lattice models\, with particular regards to the evaluati on of the free energy\, the entropy per site\, and diverse correlation fun ctions.\nWe explain how the Corner Transfer Matrix (CTM) algorithm can be used for these sakes\, and compare its results with those obtained via the Variational Uniform Matrix Product State (VUMPS) algorithm and the Tenso r Renormalization Group (TRG) algorithm.\nIn particular\, we investigate w hether tensor network methods are suitable to study frustrated systems\, f ocussing here on the geometrically frustrated Ising antiferromagnetic mode l on the triangular lattice.\nWe show that an accurate estimate of the non -trivial zero-point entropy can be obtained\, and verify that the peculiar algebraic decay of the spin-spin correlation function with increasing dis tance can be faithfully reproduced.\nThis gives us confidence to employ Te nsor Networks to study classical spin liquids in the rest of this Master t hesis.\n\nContact Person: not specified LOCATION:https://uni-koeln.zoom.us/j/5601318943?pwd=UTFvNU5FeUZvU3E4dWdtRW o5bDh2dz09 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Aprem Joy DTSTART;TZID=Europe/Berlin:20201113T140000 DTEND;TZID=Europe/Berlin:20201113T150000 DTSTAMP:20260527T090434Z UID:0000001569@events.thp.uni-koeln.de DESCRIPTION:Aprem Joy\n\nDynamics of a vison in perturbed Kitaev models (M Sc defense)\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227?pwd=dDMvclpCe E9Ra1F6cnFCVEtXUGdTUT09 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ori Alberton DTSTART;TZID=Europe/Berlin:20201117T150000 DTEND;TZID=Europe/Berlin:20201117T163000 DTSTAMP:20260527T090434Z UID:0000001570@events.thp.uni-koeln.de DESCRIPTION:Ori Alberton\n\nNovel phases and phase transitions in open qua ntum systems: Condensates\, Many-body localization and Entanglement (PhD d efence)\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/94179417365 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Cristoph Berke DTSTART;TZID=Europe/Berlin:20201118T143000 DTEND;TZID=Europe/Berlin:20201118T153000 DTSTAMP:20260527T090434Z UID:0000001573@events.thp.uni-koeln.de DESCRIPTION:Cristoph Berke\n\nChaotic transmons\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227?pwd=dDMvclpCe E9Ra1F6cnFCVEtXUGdTUT09 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Anne Matthies DTSTART;TZID=Europe/Berlin:20201125T100000 DTEND;TZID=Europe/Berlin:20201125T113000 DTSTAMP:20260527T090434Z UID:0000001574@events.thp.uni-koeln.de DESCRIPTION:Anne Matthies\n\nFloquet Majorana box qubits\n\n\n\nContact Pe rson: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Carsten Bauer DTSTART;TZID=Europe/Berlin:20201127T140000 DTEND;TZID=Europe/Berlin:20201127T150000 DTSTAMP:20260527T090434Z UID:0000001566@events.thp.uni-koeln.de DESCRIPTION:Carsten Bauer\n\nSimulating and machine learning quantum criti cality in a nearly antiferromagnetic metal (PhD defense)\n\n\n\nContact Pe rson: not specified LOCATION:https://uni-koeln.zoom.us/j/91427966271?pwd=a0RxendpY1ZDempKb0ExU XBiUk5nUT09 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Lasse Gresista DTSTART;TZID=Europe/Berlin:20201202T100000 DTEND;TZID=Europe/Berlin:20201202T113000 DTSTAMP:20260527T090434Z UID:0000001575@events.thp.uni-koeln.de DESCRIPTION:Lasse Gresista\n\nMoments and multiplets in Moire materials an d beyond\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dominik Kiese DTSTART;TZID=Europe/Berlin:20201209T100000 DTEND;TZID=Europe/Berlin:20201209T113000 DTSTAMP:20260527T090434Z UID:0000001576@events.thp.uni-koeln.de DESCRIPTION:Dominik Kiese\n\nMultiloop pf-FRG for quantum spin systems\n\n \n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Daniel Kruti DTSTART;TZID=Europe/Berlin:20201216T100000 DTEND;TZID=Europe/Berlin:20201216T113000 DTSTAMP:20260527T090434Z UID:0000001577@events.thp.uni-koeln.de DESCRIPTION:Daniel Kruti\n\nGlobal solutions of functional fixed point equ ations and applications to criticality\n\n\n\nContact Person: not specifie d LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Thomas Boemerich DTSTART;TZID=Europe/Berlin:20210113T100000 DTEND;TZID=Europe/Berlin:20210113T113000 DTSTAMP:20260527T090434Z UID:0000001579@events.thp.uni-koeln.de DESCRIPTION:Thomas Boemerich\n\nNonreciprocal transport and magnetoresista nce in a nodal line semimetal\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Nico Gneist DTSTART;TZID=Europe/Berlin:20210120T100000 DTEND;TZID=Europe/Berlin:20210120T113000 DTSTAMP:20260527T090434Z UID:0000001580@events.thp.uni-koeln.de DESCRIPTION:Nico Gneist\n\nCompeting Quantum-Many Body Instabilities In Fl at Band Materials\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Michael Buchhold DTSTART;TZID=Europe/Berlin:20210127T100000 DTEND;TZID=Europe/Berlin:20210127T113000 DTSTAMP:20260527T090434Z UID:0000001581@events.thp.uni-koeln.de DESCRIPTION:Michael Buchhold\n\nMeasurement-Induced Phases and Phase Trans itions in Monitored Fermion Systems\n\nA wave function exposed to measurem ents undergoes pure state dynamics\, with deterministic unitary and probab ilistic measurement induced state updates\, defining a quantum trajectory. For many-particle systems\, the competition of these different elements o f dynamics can give rise to a scenario similar to quantum phase transition s. However\, due to the stochastic nature of the wave function this type o f phase transition does not manifest itself in common observable averages\ , obtained from the statistically averaged density matrix\, and have inste ad mainly been observed in the dynamics entanglement. Hence\, they are oft en termed entanglement transitions.\nHere we establish a novel type of ent anglement transition between a regime of logarithmic entanglement growth\, and a quantum Zeno regime obeying an area law\, in continuously monitored fermion dynamics. We analyze the phase transition from to different persp ectives: (i) numerical simulations of monitored lattice fermions and (ii) an analytical field theory for monitored Dirac fermions\, interpolating b etween the microscopic measurement dynamics and the macroscopic observable s. We identify the relevant degrees of freedom for describing the phase tr ansition and show that their dynamics is governed by a non-Hermitian quant um Sine-Gordon model. This yields a physical picture for the phase transit ion in terms of a depinning from the measurement operator eigenstates indu ced by unitary dynamics\, and places it into the BKT universality class.\n \nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Joel Kunkel DTSTART;TZID=Europe/Berlin:20210202T153000 DTEND;TZID=Europe/Berlin:20210202T163000 DTSTAMP:20260527T090434Z UID:0000001605@events.thp.uni-koeln.de DESCRIPTION:Joel Kunkel\n\nDynamical Monte Carlo simulations of the triang ular Ising model (BSc defense)\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Niklas Tausendpfund DTSTART;TZID=Europe/Berlin:20210203T100000 DTEND;TZID=Europe/Berlin:20210203T113000 DTSTAMP:20260527T090434Z UID:0000001582@events.thp.uni-koeln.de DESCRIPTION:Niklas Tausendpfund\n\nMajorana Edge Modes: A Road To An U(1) Symmetric Realization In Coupled Wires\n\n\n\nContact Person: not specifie d LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jinhong Park DTSTART;TZID=Europe/Berlin:20210212T140000 DTEND;TZID=Europe/Berlin:20210212T153000 DTSTAMP:20260527T090434Z UID:0000001583@events.thp.uni-koeln.de DESCRIPTION:Jinhong Park\n\nTopological thermal Hall response: violation o f Einsten/Luttinger relation\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Sebastian Kalhoefer DTSTART;TZID=Europe/Berlin:20210217T110000 DTEND;TZID=Europe/Berlin:20210217T123000 DTSTAMP:20260527T090434Z UID:0000001596@events.thp.uni-koeln.de DESCRIPTION:Sebastian Kalhoefer\n\nQuantum Mechanical and Quantum Field Th eoretical Approximations for a Lindblad Equation with a Topological Phase Transition\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Chae-Yeun Park DTSTART;TZID=Europe/Berlin:20210414T100000 DTEND;TZID=Europe/Berlin:20210414T113000 DTSTAMP:20260527T090434Z UID:0000001615@events.thp.uni-koeln.de DESCRIPTION:Chae-Yeun Park\n\nAre neural quantum states good at solving no n-stoquastic Hamiltonians?\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Thomas Mueller DTSTART;TZID=Europe/Berlin:20210421T100000 DTEND;TZID=Europe/Berlin:20210421T113000 DTSTAMP:20260527T090434Z UID:0000001617@events.thp.uni-koeln.de DESCRIPTION:Thomas Mueller\n\nEntanglement transition in long-range hoppin g monitored fermions\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | ‪Bernhard Ihrig DTSTART;TZID=Europe/Berlin:20210426T110000 DTEND;TZID=Europe/Berlin:20210426T123000 DTSTAMP:20260527T090434Z UID:0000001614@events.thp.uni-koeln.de DESCRIPTION:‪Bernhard Ihrig\n\nDeconfined Quantum Critical Behavior of D irac Materials (PhD defense)\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ciaran Hickey DTSTART;TZID=Europe/Berlin:20210428T100000 DTEND;TZID=Europe/Berlin:20210428T113000 DTSTAMP:20260527T090434Z UID:0000001618@events.thp.uni-koeln.de DESCRIPTION:Ciaran Hickey\n\nExtracting Big Physics from Small Systems\n\n \n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Markus Schmitt DTSTART;TZID=Europe/Berlin:20210505T100000 DTEND;TZID=Europe/Berlin:20210505T113000 DTSTAMP:20260527T090434Z UID:0000001619@events.thp.uni-koeln.de DESCRIPTION:Markus Schmitt\n\nMachine learning inspired variational approa ches to quantum many-body physics\n\nThe title above constitutes the great est common divisor of two topics that I plan to cover in this seminar: var iational time evolution of neural quantum states to simulate open system d ynamics [1] and a machine learning approach to study the complexity of qua ntum states [2].\n\n[1] https://arxiv.org/abs/2104.00013 \n[2] https://arx iv.org/abs/2102.11328\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tobias Herrig DTSTART;TZID=Europe/Berlin:20210512T100000 DTEND;TZID=Europe/Berlin:20210512T113000 DTSTAMP:20260527T090434Z UID:0000001627@events.thp.uni-koeln.de DESCRIPTION:Tobias Herrig\, Forschungszentrum Juelich\n\nA “minimal” t opological quantum circuit\n\nThe outlook of protected quantum computing s purred enormous progress in the search for topological\nmaterials\, sustai ning a continued race to find the most experimentally feasible platform.\n Here\, we show that one of the simplest quantum circuits\, the Cooper-pair transistor\, exhibits a nontrivial\nChern number which has not yet been d iscussed\, in spite of the exhaustive existing literature.\nSurprisingly\, the resulting quantized current response is robust with respect to a larg e number of\nexternal perturbations\, most notably low-frequency charge no ise and quasiparticle poisoning. Moreover\,\nthe fact that the higher band s experience crossings with higher topological charge leads to\nall the ba nds having the same Chern number\, such that there is no restriction to st ay close to the\nground state. Remaining small perturbations are investiga ted based on a generic Master equation\napproach. Finally\, we discuss fea sible protocols to measure the quantized current.\n\nContact Person: not s pecified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Kapil Goswami DTSTART;TZID=Europe/Berlin:20210519T100000 DTEND;TZID=Europe/Berlin:20210519T113000 DTSTAMP:20260527T090434Z UID:0000001620@events.thp.uni-koeln.de DESCRIPTION:Kapil Goswami\n\nPuddle physics in nanowires\n\n\n\nContact Pe rson: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Álvaro Parra DTSTART;TZID=Europe/Berlin:20210521T140000 DTEND;TZID=Europe/Berlin:20210521T153000 DTSTAMP:20260527T090434Z UID:0000001634@events.thp.uni-koeln.de DESCRIPTION:Álvaro Parra\, Heidelberg University\n\nSimulating an expandi ng universe with BEC\n\n\n\nContact Person: Michael Scherer LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Yannik Schaden DTSTART;TZID=Europe/Berlin:20210602T100000 DTEND;TZID=Europe/Berlin:20210602T113000 DTSTAMP:20260527T090434Z UID:0000001621@events.thp.uni-koeln.de DESCRIPTION:Yannik Schaden\n\ntba\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Carlos Marimon DTSTART;TZID=Europe/Berlin:20210609T100000 DTEND;TZID=Europe/Berlin:20210609T113000 DTSTAMP:20260527T090434Z UID:0000001622@events.thp.uni-koeln.de DESCRIPTION:Carlos Marimon\n\nClusters in the negatively detuned open Bose -Hubbard model\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Kai Meinerz DTSTART;TZID=Europe/Berlin:20210616T100000 DTEND;TZID=Europe/Berlin:20210616T113000 DTSTAMP:20260527T090434Z UID:0000001623@events.thp.uni-koeln.de DESCRIPTION:Kai Meinerz\n\nScalable Neural Decoder for Topological Surfac e Codes\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Carl Zelle DTSTART;TZID=Europe/Berlin:20210623T100000 DTEND;TZID=Europe/Berlin:20210623T113000 DTSTAMP:20260527T090434Z UID:0000001624@events.thp.uni-koeln.de DESCRIPTION:Carl Zelle\n\nQuantum magnetism in a cavity\n\n\n\nContact Per son: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Mireia Tolosa Simeon DTSTART;TZID=Europe/Berlin:20210628T160000 DTEND;TZID=Europe/Berlin:20210628T170000 DTSTAMP:20260527T090434Z UID:0000001640@events.thp.uni-koeln.de DESCRIPTION:Mireia Tolosa Simeon\, Heidelberg University\n\nCurved FLRW un iverses in Bose-Einstein Condensates\n\n\n\nContact Person: Michael Schere r LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Daniel Kruti DTSTART;TZID=Europe/Berlin:20210630T100000 DTEND;TZID=Europe/Berlin:20210630T113000 DTSTAMP:20260527T090434Z UID:0000001625@events.thp.uni-koeln.de DESCRIPTION:Daniel Kruti\n\nGlobal Solutions and Critical Behaviour from P seudo-Spectral Methods (MSc defence)\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Felix Henschke DTSTART;TZID=Europe/Berlin:20210705T140000 DTEND;TZID=Europe/Berlin:20210705T153000 DTSTAMP:20260527T090434Z UID:0000001645@events.thp.uni-koeln.de DESCRIPTION:Felix Henschke\n\nClassical Frustrated Systems via Tensor Netw orks: A Study of the Triangular Ising Model (Master Kolloquium)\n\n\n\nCon tact Person: Matteo Rizzi LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Leonard Kaufhold DTSTART;TZID=Europe/Berlin:20210707T100000 DTEND;TZID=Europe/Berlin:20210707T113000 DTSTAMP:20260527T090434Z UID:0000001626@events.thp.uni-koeln.de DESCRIPTION:Leonard Kaufhold\n\nSurface screening in TI nanowires\n\n\n\nC ontact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Daniel Simm DTSTART;TZID=Europe/Berlin:20210714T101500 DTEND;TZID=Europe/Berlin:20210714T110000 DTSTAMP:20260527T090434Z UID:0000001642@events.thp.uni-koeln.de DESCRIPTION:Daniel Simm\n\nBachelor Kolloquium\n\n\n\nContact Person: Simo n Trebst LOCATION:https://uni-koeln.zoom.us/j/92374710227 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tobias Doerstel DTSTART;TZID=Europe/Berlin:20210714T093000 DTEND;TZID=Europe/Berlin:20210714T101500 DTSTAMP:20260527T090434Z UID:0000001646@events.thp.uni-koeln.de DESCRIPTION:Tobias Doerstel\n\nBachelor Kolloquium\n\n\n\nContact Person: Simon Trebst LOCATION:https://uni-koeln.zoom.us/j/92374710227 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Lukas Noth DTSTART;TZID=Europe/Berlin:20210721T100000 DTEND;TZID=Europe/Berlin:20210721T103000 DTSTAMP:20260527T090434Z UID:0000001643@events.thp.uni-koeln.de DESCRIPTION:Lukas Noth\n\nBachelor Kolloquium\n\n\n\nContact Person: not s pecified LOCATION:https://uni-koeln.zoom.us/j/92374710227 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Lasse Gresista DTSTART;TZID=Europe/Berlin:20210811T100000 DTEND;TZID=Europe/Berlin:20210811T113000 DTSTAMP:20260527T090434Z UID:0000001649@events.thp.uni-koeln.de DESCRIPTION:Lasse Gresista\n\nMaster Kolloquium\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dalita Danyali DTSTART;TZID=Europe/Berlin:20210813T093000 DTEND;TZID=Europe/Berlin:20210813T101500 DTSTAMP:20260527T090434Z UID:0000001650@events.thp.uni-koeln.de DESCRIPTION:Dalita Danyali\n\nBachelor Kolloquium\n\n\n\nContact Person: n ot specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Malte Puetz DTSTART;TZID=Europe/Berlin:20210813T101500 DTEND;TZID=Europe/Berlin:20210813T110000 DTSTAMP:20260527T090434Z UID:0000001651@events.thp.uni-koeln.de DESCRIPTION:Malte Puetz\n\nBachelor Kolloquium\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Quinten Preiss DTSTART;TZID=Europe/Berlin:20210825T140000 DTEND;TZID=Europe/Berlin:20210825T143000 DTSTAMP:20260527T090434Z UID:0000001655@events.thp.uni-koeln.de DESCRIPTION:Quinten Preiss\n\nClassical Magnetism in Moire Heterostructure s\n\nBachelor colloquium\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Sebastian Kalhoefer DTSTART;TZID=Europe/Berlin:20211013T100000 DTEND;TZID=Europe/Berlin:20211013T113000 DTSTAMP:20260527T090434Z UID:0000001656@events.thp.uni-koeln.de DESCRIPTION:Sebastian Kalhoefer\n\nFunctional Renormalization for a Fermio nic System with a Topological Phase Transition away from Thermodynamic Equ ilibrium (MSc defense)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Junaid Akhter DTSTART;TZID=Europe/Berlin:20211015T163000 DTEND;TZID=Europe/Berlin:20211015T173000 DTSTAMP:20260527T090434Z UID:0000001661@events.thp.uni-koeln.de DESCRIPTION:Junaid Akhter\, University of Bonn\n\nCompressing Neural Quant um States with Matrix Product Operators\n\nThe speaker is online from home \, but we could have an in-presence audience in the usual seminar room 0.0 3. See you tomorrow!\n\nContact Person: Markus Schmitt and Matteo Rizzi LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Helene Mueller DTSTART;TZID=Europe/Berlin:20211029T140000 DTEND;TZID=Europe/Berlin:20211029T153000 DTSTAMP:20260527T090434Z UID:0000001666@events.thp.uni-koeln.de DESCRIPTION:Helene Mueller\, University of Erlangen-Nuremberg\n\nCoupling an Adsorbed Transition-Metal Complex to Light\n\n\n\nContact Person: not s pecified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Romain Daviet DTSTART;TZID=Europe/Berlin:20211103T140000 DTEND;TZID=Europe/Berlin:20211103T153000 DTSTAMP:20260527T090434Z UID:0000001660@events.thp.uni-koeln.de DESCRIPTION:Romain Daviet\n\nInteractions and disorder in one-dimensional Bose fluids\n\nFor a particle in a one-dimensional random potential all ei genstates are localized (Anderson localization). Interplay between interac tions and disorder can lead to a localization-delocalization transition: i n disordered bosonic fluids\, the ground state is either a superfluid or i n a localized phase called Bose glass. The associated phase diagram is wel l understood\, but there is little study of the precise properties of the Bose-glass phase.\n Using a functional implementation of the Renormalizat ion Group\, I will describe the Bose-glass phase and some of its glassy pr operties linked to the existence of metastable states. I will then discuss the chaotic behavior of the Bose glass\, i.e. its extreme sensitivity to external parameters. Finally\, I will consider the effect of long-range in teractions\, which can induce a new disordered phase called Mott glass.\n\ nContact Person: not specified LOCATION:Seminar Room\, II Physics Institute END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Anne-Maria Visuri DTSTART;TZID=Europe/Berlin:20211110T140000 DTEND;TZID=Europe/Berlin:20211110T153000 DTSTAMP:20260527T090434Z UID:0000001657@events.thp.uni-koeln.de DESCRIPTION:Anne-Maria Visuri\, Physikalisches Institut\, University of Bo nn\n\nTransport through a dissipative superconducting contact\n\n\n\nConta ct Person: not specified LOCATION:Seminar Room\, II Physics Institute END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Carlos Marimon DTSTART;TZID=Europe/Berlin:20211112T140000 DTEND;TZID=Europe/Berlin:20211112T153000 DTSTAMP:20260527T090434Z UID:0000001670@events.thp.uni-koeln.de DESCRIPTION:Carlos Marimon\n\nInteracting bosons in cavity: cluster format ion (Master Kolloquium)\n\n\n\nContact Person: not specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Kapil Goswami DTSTART;TZID=Europe/Berlin:20211126T140000 DTEND;TZID=Europe/Berlin:20211126T153000 DTSTAMP:20260527T090434Z UID:0000001662@events.thp.uni-koeln.de DESCRIPTION:Kapil Goswami\n\nPuddle Physics in Topological Insulator Nanow ires (Master Kolloquium)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Filip Marijanovic DTSTART;TZID=Europe/Berlin:20211201T100000 DTEND;TZID=Europe/Berlin:20211201T113000 DTSTAMP:20260527T090434Z UID:0000001685@events.thp.uni-koeln.de DESCRIPTION:Filip Marijanovic\, University of Cambridge\n\nRayleigh waves and cyclotron surface modes of gyroscopic metamaterials\n\n\n\nContact Per son: Achim Rosch LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Guo-Yi Zhu DTSTART;TZID=Europe/Berlin:20211203T140000 DTEND;TZID=Europe/Berlin:20211203T153000 DTSTAMP:20260527T090434Z UID:0000001664@events.thp.uni-koeln.de DESCRIPTION:Guo-Yi Zhu\n\nFracton topological phase transitions with exact tensor network wave-function\n\nIn this talk I’ll talk about our ongoin g research effort in understanding some type I fracton topological phases and phase transitions\, by means of constructing exact tensor network grou nd state wave-functions and through the lens of duality. \nIn recent years the 3D gapped fracton topological phases have attracted much attention mo tivated from various directions: the search for more robust topological qu antum memory\; generalization of gauge theory\; and constrained dynamics. In this talk I’ll try to introduce some of the basic concepts in a pedag ogical way and tell you the physical problems I’ve been considering:\n1. phase transitions of fracton topological phases (beyond Landau paradigm)\ ;\n2. possible fractonic extension of the Kitaev gapless spin liquid?\nI w ill share with you my evolving understanding for these questions from the perspective of exact tensor-network states\, via quantum classical mapping and duality.\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP and Zoom END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Bjoern Ladewig DTSTART;TZID=Europe/Berlin:20211210T140000 DTEND;TZID=Europe/Berlin:20211210T153000 DTSTAMP:20260527T090434Z UID:0000001663@events.thp.uni-koeln.de DESCRIPTION:Bjoern Ladewig\n\nUnitary evolution vs. measurements vs. dissi pation — free fermions under stress\n\n\n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Daniele Contessi DTSTART;TZID=Europe/Berlin:20211217T140000 DTEND;TZID=Europe/Berlin:20211217T153000 DTSTAMP:20260527T090434Z UID:0000001665@events.thp.uni-koeln.de DESCRIPTION:Daniele Contessi\n\nDetection of Berezinskii-Kosterlitz-Thoule ss transition via Generative Adversarial Networks\n\n\n\nContact Person: n ot specified LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Carl Zelle DTSTART;TZID=Europe/Berlin:20220114T140000 DTEND;TZID=Europe/Berlin:20220114T153000 DTSTAMP:20260527T090434Z UID:0000001679@events.thp.uni-koeln.de DESCRIPTION:Carl Zelle\n\nExceptional Point Criticality in a nonequilibriu m U(1) model\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP and Zoom END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dennis Hardt DTSTART;TZID=Europe/Berlin:20220121T140000 DTEND;TZID=Europe/Berlin:20220121T153000 DTSTAMP:20260527T090434Z UID:0000001680@events.thp.uni-koeln.de DESCRIPTION:Dennis Hardt\n\nCurrent Driven Systems: Hydrodynamic Approach\ n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP and Zoom END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Christoph Prygodda DTSTART;TZID=Europe/Berlin:20220126T140000 DTEND;TZID=Europe/Berlin:20220126T150000 DTSTAMP:20260527T090434Z UID:0000001691@events.thp.uni-koeln.de DESCRIPTION:Christoph Prygodda\, Uni zu Koeln\n\nDie Kompression eines neu ronalen Netzes und deren Bezug zu den zugrundeliegenden physikalischen Pha enomenen (Bachelor Kolloquium)\n\n\n\nContact Person: Matteo Rizzi and Mar kus Schmitt LOCATION:Zoom ( URL https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Christoph Berke DTSTART;TZID=Europe/Berlin:20220128T140000 DTEND;TZID=Europe/Berlin:20220128T153000 DTSTAMP:20260527T090434Z UID:0000001681@events.thp.uni-koeln.de DESCRIPTION:Christoph Berke\n\nChaotic Transmons: Episode II - Return of t he Chaos\n\n\n\nContact Person: not specified LOCATION:Zoom ( https://uni-koeln.zoom.us/j/92374710227 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Luca Peterlini DTSTART;TZID=Europe/Berlin:20220204T140000 DTEND;TZID=Europe/Berlin:20220204T153000 DTSTAMP:20260527T090434Z UID:0000001682@events.thp.uni-koeln.de DESCRIPTION:Luca Peterlini\n\nDelocalized States in numerical RIXS\n\n\n\n Contact Person: not specified LOCATION:Seminar Room 0.03\, ETP and Zoom END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Leonard Kaufhold DTSTART;TZID=Europe/Berlin:20220218T140000 DTEND;TZID=Europe/Berlin:20220218T153000 DTSTAMP:20260527T090434Z UID:0000001694@events.thp.uni-koeln.de DESCRIPTION:Leonard Kaufhold\n\nThe electronic surface of topological insu lator nanowires (Master Colloquium)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP and Zoom ( https://uni-koeln.zoom.us/j/97 071617687?pwd=SjkycnFmOWFscGJZYmYzMlRQY1BNUT09 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jan Attig DTSTART;TZID=Europe/Berlin:20220303T100000 DTEND;TZID=Europe/Berlin:20220303T113000 DTSTAMP:20260527T090434Z UID:0000001697@events.thp.uni-koeln.de DESCRIPTION:Jan Attig\n\nElectronic Spectra: Topology\, Supersymmetry\, an d Statistics (PhD defense)\n\nZoom-Link: \nhttps://uni-koeln.zoom.us/j/9 4816401656?pwd=ZXFNRVBKdFlyeW9pVWdQaHdUSFB3Zz09\n\nContact Person: Jan Att ig LOCATION:Seminar Room 0.03\, ETP\, Zoom END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Kai Meinerz DTSTART;TZID=Europe/Berlin:20220406T093000 DTEND;TZID=Europe/Berlin:20220406T103000 DTSTAMP:20260527T090434Z UID:0000001701@events.thp.uni-koeln.de DESCRIPTION:Kai Meinerz\n\nMachine learning for Quantum Control: The Quant um Cartpole\n\nWe introduce a new version for the quantum version of the s tandard reinforcement learning benchmarking problem: the cartpole. The goa l is to keep a wavefunction stable on top of an inverted potential\, by ap plying weak measurements and feeding the results to a controller. Our appr oach shows\, that even with minimal measurement information\, it is possib le to extend the lifetime of the wavefunction\, by a significant margin. O ur approach works for arbitrary potentials and due to weak measurements ma kes it feasible for experimental implementation.\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and Zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Vivek Lohani DTSTART;TZID=Europe/Berlin:20220413T100000 DTEND;TZID=Europe/Berlin:20220413T113000 DTSTAMP:20260527T090434Z UID:0000001702@events.thp.uni-koeln.de DESCRIPTION:Vivek Lohani\n\nScattering by fractional topological charges\n \n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and Zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Thomas Boemerich DTSTART;TZID=Europe/Berlin:20220420T100000 DTEND;TZID=Europe/Berlin:20220420T113000 DTSTAMP:20260527T090434Z UID:0000001703@events.thp.uni-koeln.de DESCRIPTION:Thomas Boemerich\n\nNon-Ohmic transport in nodal line semimeta ls\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and Zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jeyong Park DTSTART;TZID=Europe/Berlin:20220422T140000 DTEND;TZID=Europe/Berlin:20220422T153000 DTSTAMP:20260527T090434Z UID:0000001719@events.thp.uni-koeln.de DESCRIPTION:Jeyong Park\n\nNetwork of 1d channels and localized states eme rging in a moire system\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and Zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Anne Matthies DTSTART;TZID=Europe/Berlin:20220518T101500 DTEND;TZID=Europe/Berlin:20220518T113000 DTSTAMP:20260527T090434Z UID:0000001705@events.thp.uni-koeln.de DESCRIPTION:Anne Matthies\n\nProgrammable adiabatic demagnetization for sy stems with trivial and topological excitations\n\n\n\nContact Person: Lass e Gresista LOCATION:Seminar Room 0.03\, ETP and Zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Linnea Heitmeier DTSTART;TZID=Europe/Berlin:20220520T140000 DTEND;TZID=Europe/Berlin:20220520T150000 DTSTAMP:20260527T090434Z UID:0000001713@events.thp.uni-koeln.de DESCRIPTION:Linnea Heitmeier\n\nSimulations of Spreading of Viscoelastic D roplets\n\n(Bachelor Colloquium)\n\nContact Person: Simon Trebst LOCATION:Seminar Room 0.01 and Zoom (https://uni-koeln.zoom.us/j/966468189 58 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Bernhard Wortmann DTSTART;TZID=Europe/Berlin:20220525T110000 DTEND;TZID=Europe/Berlin:20220525T120000 DTSTAMP:20260527T090434Z UID:0000001717@events.thp.uni-koeln.de DESCRIPTION:Bernhard Wortmann\n\nFrustrated magnetism in pyrochlore rare-e arth materials: A pf-FRG study\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jiangtian Yao DTSTART;TZID=Europe/Berlin:20220601T100000 DTEND;TZID=Europe/Berlin:20220601T113000 DTSTAMP:20260527T090434Z UID:0000001706@events.thp.uni-koeln.de DESCRIPTION:Jiangtian Yao\n\nEntanglement characterization of measurement induced phases in a fermionic chain\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and Zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Nina del Ser DTSTART;TZID=Europe/Berlin:20220603T140000 DTEND;TZID=Europe/Berlin:20220603T153000 DTSTAMP:20260527T090434Z UID:0000001722@events.thp.uni-koeln.de DESCRIPTION:Nina del Ser\n\nThe Turn of the Screw and the Slide of the Sky rmion (PhD defense)\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.01\, Physik I and Zoom (https://uni-koeln.zoom.us/ j/99608843390 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Daniel Alcalde DTSTART;TZID=Europe/Berlin:20220622T100000 DTEND;TZID=Europe/Berlin:20220622T113000 DTSTAMP:20260527T090434Z UID:0000001708@events.thp.uni-koeln.de DESCRIPTION:Daniel Alcalde\n\nMeasurement-induced quantum state preparatio n\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and Zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Leon Abel DTSTART;TZID=Europe/Berlin:20220624T140000 DTEND;TZID=Europe/Berlin:20220624T153000 DTSTAMP:20260527T090434Z UID:0000001712@events.thp.uni-koeln.de DESCRIPTION:Leon Abel\n\nBachelor Colloquium\n\n\n\nContact Person: not sp ecified LOCATION:Seminar Room 0.02\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Lasse Gresista DTSTART;TZID=Europe/Berlin:20220629T100000 DTEND;TZID=Europe/Berlin:20220629T113000 DTSTAMP:20260527T090434Z UID:0000001709@events.thp.uni-koeln.de DESCRIPTION:Lasse Gresista\n\nSU(4) magnetism and spin-valley liquid physi cs in trilayer graphene\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and Zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Erik Werda DTSTART;TZID=Europe/Berlin:20220706T100000 DTEND;TZID=Europe/Berlin:20220706T113000 DTSTAMP:20260527T090434Z UID:0000001710@events.thp.uni-koeln.de DESCRIPTION:Erik Werda\n\nInfinite projected entangled pair states: treati ng 2d quantum matter in the thermodynamic limit\n\n\n\nContact Person: Las se Gresista LOCATION:Zoom (https://uni-koeln.zoom.us/j/96646818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Vaishnavi Jayakumar DTSTART;TZID=Europe/Berlin:20220708T140000 DTEND;TZID=Europe/Berlin:20220708T153000 DTSTAMP:20260527T090434Z UID:0000001707@events.thp.uni-koeln.de DESCRIPTION:Vaishnavi Jayakumar\n\nBuilding Blocks for Cluster Mott Insula tors\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.01\, ETP and Zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Johannes Lang DTSTART;TZID=Europe/Berlin:20220713T100000 DTEND;TZID=Europe/Berlin:20220713T113000 DTSTAMP:20260527T090434Z UID:0000001711@events.thp.uni-koeln.de DESCRIPTION:Johannes Lang\n\nNon-equilibrium many-body physics of polarito ns in atomic and solid-state media\n\nAbstract: Hybrid light-matter excita tions\, so-called polaritons\,\ncombine the advantages of photons in detec tion and transmission with\nthe interactions of their matter component. Th ey are therefore not\nonly of great technological interest but also promis ing tools to\nprobe new states of matter. However\, their driven and dissi pative\nnature also poses a challenge for any theoretical description.\nIn this talk I will explain how this challenge can be addressed with\nnon-eq uilibrium field-theory. Using two examples from my recent\nresearch I will provide a small glimpse into the rich many-body\nphysics of polaritons. I will begin by introducing a systematic\nexpansion in the interaction rang e and leverage it to provide a\nquantitative description of non-equilibriu m phase transitions in\nphotonic waveguides. Subsequently I will address t he time-evolution\nof polaron-polaritons in a two-dimensional semiconducto r irradiated\nby an intense light pulse\, highlighting our recent advances towards\nthe quantitative description of the dynamics of highly excited\n many-body systems.\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and Zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dominik Kiese DTSTART;TZID=Europe/Berlin:20220805T150000 DTEND;TZID=Europe/Berlin:20220805T163000 DTSTAMP:20260527T090434Z UID:0000001745@events.thp.uni-koeln.de DESCRIPTION:Dominik Kiese\n\nEffective field theories for strongly correla ted fermions: Insights from the functional renormalization group (PhD defe nse)\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room old theory and Zoom (https://uni-koeln.zoom.us/j/970 23124355 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Vivek Lohani DTSTART;TZID=Europe/Berlin:20220805T130000 DTEND;TZID=Europe/Berlin:20220805T143000 DTSTAMP:20260527T090434Z UID:0000001752@events.thp.uni-koeln.de DESCRIPTION:Vivek Lohani\n\nSYK Dot Out of Equilibrium & Scattering from F ractional Topological Textures (PhD defense)\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room old theory END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Simon-Dominik Boerner DTSTART;TZID=Europe/Berlin:20220824T100000 DTEND;TZID=Europe/Berlin:20220824T113000 DTSTAMP:20260527T090434Z UID:0000001753@events.thp.uni-koeln.de DESCRIPTION:Simon-Dominik Boerner\n\nChaos in driven transmon arrays\n\n\n \nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Luca Peterlini DTSTART;TZID=Europe/Berlin:20220829T140000 DTEND;TZID=Europe/Berlin:20220829T153000 DTSTAMP:20260527T090434Z UID:0000001743@events.thp.uni-koeln.de DESCRIPTION:Luca Peterlini\n\nMaster defense\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jiangtian Yao DTSTART;TZID=Europe/Berlin:20220907T160000 DTEND;TZID=Europe/Berlin:20220907T173000 DTSTAMP:20260527T090434Z UID:0000001759@events.thp.uni-koeln.de DESCRIPTION:Jiangtian Yao\n\nEntanglement Characterization of Measurement- Induced Phase Transitions in Fermionic Chains (master defense)\n\n\n\nCont act Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and Zoom (https://uni-koeln.zoom.us/j/947 1750845 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jeyong Park DTSTART;TZID=Europe/Berlin:20220930T153000 DTEND;TZID=Europe/Berlin:20220930T170000 DTSTAMP:20260527T090434Z UID:0000001756@events.thp.uni-koeln.de DESCRIPTION:Jeyong Park\n\nTriangular network interacting model of 1D edge channels and localized modes emerging in moire system (master defense)\n\ n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and zoom (https://uni-koeln.zoom.us/j/931 62627830 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Guo-Yi Zhu DTSTART;TZID=Europe/Berlin:20221012T100000 DTEND;TZID=Europe/Berlin:20221012T113000 DTSTAMP:20260527T090434Z UID:0000001766@events.thp.uni-koeln.de DESCRIPTION:Guo-Yi Zhu\n\nNishimori's cat: stable long-range entanglement from finite-depth unitaries and weak measurements\n\nIn the field of monit ored quantum circuits\, it has remained an open question whether finite-ti me protocols for preparing long-range entangled (LRE) states lead to phase s of matter which are stable to gate imperfections. Here we show that such gate imperfections effectively convert projective into weak measurements and that\, in certain cases\, long-range entanglement persists\, even in t he presence of weak measurements and gives rise to novel forms of quantum criticality. We demonstrate this explicitly for preparing the two-dimensio nal (2D) GHZ cat state and the three-dimensional (3D) toric code as minima l instances. In contrast to previous studies on measurement-induced phases and transitions\, our circuit of gates and measurements is deterministic\ ; the only randomness is in the measurement outcomes. We show how the rand omness in these weak measurements allows us to track the solvable Nishimor i line of the random-bond Ising model\, rigorously establishing the stabil ity of the glassy LRE states in two and three spatial dimensions. Away fro m this exactly solvable construction\, we use hybrid tensor network and Mo nte Carlo simulations to obtain a non-zero Edwards-Anderson order paramete r as an indicator of long-range entanglement in the 2D scenario. We argue that our protocol admits a natural implementation in existing quantum comp uting architectures\, requiring only a depth-3 circuit on IBM's heavy-hexa gon transmon chips.\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Nico Gneist DTSTART;TZID=Europe/Berlin:20221019T100000 DTEND;TZID=Europe/Berlin:20221019T113000 DTSTAMP:20260527T090434Z UID:0000001748@events.thp.uni-koeln.de DESCRIPTION:Nico Gneist\n\nCompeting Orders in the Triangular Lattice Hubb ard Model\, an Application of the Truncated-Unity Functional Renormalizati on Group (PhD defense)\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Alla Bezvershenko DTSTART;TZID=Europe/Berlin:20221026T100000 DTEND;TZID=Europe/Berlin:20221026T113000 DTSTAMP:20260527T090434Z UID:0000001767@events.thp.uni-koeln.de DESCRIPTION:Alla Bezvershenko\n\nWalking skyrmions\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Daniel Alcalde Puente DTSTART;TZID=Europe/Berlin:20221102T100000 DTEND;TZID=Europe/Berlin:20221102T113000 DTSTAMP:20260527T090434Z UID:0000001762@events.thp.uni-koeln.de DESCRIPTION:Daniel Alcalde Puente\n\nMeasurement induced state preparation \n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Imane El Achchi DTSTART;TZID=Europe/Berlin:20221109T100000 DTEND;TZID=Europe/Berlin:20221109T113000 DTSTAMP:20260527T090434Z UID:0000001768@events.thp.uni-koeln.de DESCRIPTION:Imane El Achchi\n\nCooling Protocol on a Quantum Computer\n\n\ n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Thomas Mueller DTSTART;TZID=Europe/Berlin:20221116T100000 DTEND;TZID=Europe/Berlin:20221116T113000 DTSTAMP:20260527T090434Z UID:0000001775@events.thp.uni-koeln.de DESCRIPTION:Thomas Mueller\n\nRevealing measurement induced phase transiti ons by preselection\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and Zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Mo Abedi DTSTART;TZID=Europe/Berlin:20221123T100000 DTEND;TZID=Europe/Berlin:20221123T113000 DTSTAMP:20260527T090434Z UID:0000001772@events.thp.uni-koeln.de DESCRIPTION:Mo Abedi\n\nReinforcement Learning for Quantum Control\n\n\n\n Contact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Florian Michael DTSTART;TZID=Europe/Berlin:20221202T140000 DTEND;TZID=Europe/Berlin:20221202T153000 DTSTAMP:20260527T090434Z UID:0000001773@events.thp.uni-koeln.de DESCRIPTION:Florian Michael\n\nCompression of Neural Quantum States Using Tensor Networks\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and Zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Martin Gembe DTSTART;TZID=Europe/Berlin:20221207T100000 DTEND;TZID=Europe/Berlin:20221207T113000 DTSTAMP:20260527T090434Z UID:0000001764@events.thp.uni-koeln.de DESCRIPTION:Martin Gembe\n\nNon-Coplanar Magnetic Orders in Classical Squa re-Kagome Antiferromagnets\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Simon-Dominik Boehner DTSTART;TZID=Europe/Berlin:20221219T083000 DTEND;TZID=Europe/Berlin:20221219T093000 DTSTAMP:20260527T090434Z UID:0000001800@events.thp.uni-koeln.de DESCRIPTION:Simon-Dominik Boehner\n\nDynamics of Coupled Transmon Systems (MSc thesis defense)\n\n\n\nContact Person: Simon Trebst LOCATION:zoom END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Aprem Joy DTSTART;TZID=Europe/Berlin:20221221T100000 DTEND;TZID=Europe/Berlin:20221221T113000 DTSTAMP:20260527T090434Z UID:0000001774@events.thp.uni-koeln.de DESCRIPTION:Aprem Joy\n\nLooking for visons in a Kitaev material\n\n\n\nCo ntact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and Zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dennis Hardt DTSTART;TZID=Europe/Berlin:20230111T100000 DTEND;TZID=Europe/Berlin:20230111T113000 DTSTAMP:20260527T090434Z UID:0000001765@events.thp.uni-koeln.de DESCRIPTION:Dennis Hardt\n\nDriven Magnets: Domain Wall Motion in Ferrimag nets in an Oscillating Magnetic Field\n\n\n\nContact Person: Lasse Gresist a LOCATION:Seminar Room 0.03\, ETP and Zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Romain Daviet DTSTART;TZID=Europe/Berlin:20230118T100000 DTEND;TZID=Europe/Berlin:20230118T113000 DTSTAMP:20260527T090434Z UID:0000001763@events.thp.uni-koeln.de DESCRIPTION:Romain Daviet\n\nCritical Exceptional Points of non-equilibriu m O(N) model\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Rene Wolters DTSTART;TZID=Europe/Berlin:20230125T100000 DTEND;TZID=Europe/Berlin:20230125T113000 DTSTAMP:20260527T090434Z UID:0000001769@events.thp.uni-koeln.de DESCRIPTION:Rene Wolters\n\nFunctional renormalization of a non-conservati ve O(N) model\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Bernhard Wortmann DTSTART;TZID=Europe/Berlin:20230127T140000 DTEND;TZID=Europe/Berlin:20230127T153000 DTSTAMP:20260527T090434Z UID:0000001810@events.thp.uni-koeln.de DESCRIPTION:Bernhard Wortmann\n\nCompeting phases in spin-orbit entangled pyrochlore materials (Master defense)\n\n\n\nContact Person: Lasse Gresist a LOCATION:Seminar Room 0.03\, ETP and zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Sagar Ramchandani DTSTART;TZID=Europe/Berlin:20230201T100000 DTEND;TZID=Europe/Berlin:20230201T113000 DTSTAMP:20260527T090434Z UID:0000001770@events.thp.uni-koeln.de DESCRIPTION:Sagar Ramchandani\n\nEmergent U(1) symmetry for the Gamma prim e model on triangle-based lattices\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Bjoern Ladewig DTSTART;TZID=Europe/Berlin:20230213T100000 DTEND;TZID=Europe/Berlin:20230213T113000 DTSTAMP:20260527T090434Z UID:0000001816@events.thp.uni-koeln.de DESCRIPTION:Bjoern Ladewig\n\nNon-equilibrium universality: slow drives\, measurements and dephasing (PhD defense)\n\n\n\nContact Person: Lasse Gres ista LOCATION:Seminar Room 0.01\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Christoph Berke DTSTART;TZID=Europe/Berlin:20230215T100000 DTEND;TZID=Europe/Berlin:20230215T113000 DTSTAMP:20260527T090434Z UID:0000001820@events.thp.uni-koeln.de DESCRIPTION:Christoph Berke\n\nTransmon-based quantum computers from a man y-body perspective (PhD defense)\n\n\n\nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP and Zoom (https://uni-koeln.zoom.us/j/966 46818958 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ravn Henkel DTSTART;TZID=Europe/Berlin:20230331T140000 DTEND;TZID=Europe/Berlin:20230331T150000 DTSTAMP:20260527T090434Z UID:0000001827@events.thp.uni-koeln.de DESCRIPTION:Ravn Henkel\n\nMaster thesis colloquium\n\n\n\nContact Person: Simon Trebst LOCATION:Seminar Room 0.01\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Konrad Schroeder DTSTART;TZID=Europe/Berlin:20230405T100000 DTEND;TZID=Europe/Berlin:20230405T113000 DTSTAMP:20260527T090434Z UID:0000001832@events.thp.uni-koeln.de DESCRIPTION:Konrad Schroeder\n\nAnalyse des Grundzustands im antiferromagn etischen Heisenbergmodell auf dem Dreiecksgitter (Bachelor Kolloquim)\n\n\ n\nContact Person: Aprem P. Joy LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Johannes Lang DTSTART;TZID=Europe/Berlin:20230412T100000 DTEND;TZID=Europe/Berlin:20230412T113000 DTSTAMP:20260527T090434Z UID:0000001833@events.thp.uni-koeln.de DESCRIPTION:Johannes Lang\n\nUniversal dynamics near (non)-thermal fixed p oints in the open O(N) model\n\n\n\nContact Person: Aprem P. Joy LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Nina del Ser DTSTART;TZID=Europe/Berlin:20230419T100000 DTEND;TZID=Europe/Berlin:20230419T113000 DTSTAMP:20260527T090434Z UID:0000001834@events.thp.uni-koeln.de DESCRIPTION:Nina del Ser\n\nFractional beasts and where to find them (in c lassical magnets)\n\n\n\nContact Person: Aprem P. Joy LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Leonard Kaufhold DTSTART;TZID=Europe/Berlin:20230428T140000 DTEND;TZID=Europe/Berlin:20230428T153000 DTSTAMP:20260527T090434Z UID:0000001836@events.thp.uni-koeln.de DESCRIPTION:Leonard Kaufhold\n\nTransport and superconductivity in disorde red topological insulator nanowires\n\n\n\nContact Person: Aprem P. Joy LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Thomas Boemerich DTSTART;TZID=Europe/Berlin:20230503T100000 DTEND;TZID=Europe/Berlin:20230503T113000 DTSTAMP:20260527T090434Z UID:0000001838@events.thp.uni-koeln.de DESCRIPTION:Thomas Boemerich\n\nNon-local transport and search for a slow mode coupling to charge\n\n\n\nContact Person: Aprem P. Joy LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Guo-Yi Zhu DTSTART;TZID=Europe/Berlin:20230510T100000 DTEND;TZID=Europe/Berlin:20230510T113000 DTSTAMP:20260527T090434Z UID:0000001839@events.thp.uni-koeln.de DESCRIPTION:Guo-Yi Zhu\n\nStructured volume-law entanglement in an interac ting\, monitored Majorana spin liquid\n\n\n\nContact Person: Aprem P. Joy LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Niklas Tausendpfund DTSTART;TZID=Europe/Berlin:20230517T100000 DTEND;TZID=Europe/Berlin:20230517T113000 DTSTAMP:20260527T090434Z UID:0000001840@events.thp.uni-koeln.de DESCRIPTION:Niklas Tausendpfund\n\nAlmost strong zero mode\n\n\n\nContact Person: Aprem P. Joy LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Federico Gerbino DTSTART;TZID=Europe/Berlin:20230524T100000 DTEND;TZID=Europe/Berlin:20230524T113000 DTSTAMP:20260527T090434Z UID:0000001841@events.thp.uni-koeln.de DESCRIPTION:Federico Gerbino\, Uni Tuebingen\n\nKeldysh approach to quantu m reaction-diffusion dynamics\n\nReaction-diffusion models\, where particl es are allowed to react when they meet\, display genuine\nnon-equilibrium behaviour. In classical settings\, it has been shown that universal proper ties arise\, and\nthat non-equilibrium steady-state phase transitions betw een fluctuating and absorbing phases can\nappear. Recent studies have show n that quantum dynamics can modify the properties of critical\nnon-equilib rium systems\, and that even the reaction-limited asymptotics cannot be pr operly described by a mean-field approximation. Starting from the quantum Master equation\, we propose a\nfield-theoretical approach to the study of quantum reaction-diffusion systems\, building on the Keldysh formalism. W e tackle the problem starting from the two-particle loss process A + A -> O. By means of a perturbative expansion\, we exploit the Dyson equation in order to derive Boltzmann-like\nequations for the bosonic and fermionic p article densities. These are compared to the classical and\nquantum reacti on-limited rate equations\, and are solved both in the homogeneous and\nno n-homogeneous case. We study the dynamics of a quench from a double- to a single-well confining\npotential\, where a novel decay regime is reached.\ n\nContact Person: Sebastian Diehl LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Finn Eckstein DTSTART;TZID=Europe/Berlin:20230614T100000 DTEND;TZID=Europe/Berlin:20230614T113000 DTSTAMP:20260527T090434Z UID:0000001853@events.thp.uni-koeln.de DESCRIPTION:Finn Eckstein\n\nToric code under weak measurement\n\n\n\nCont act Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Anne Matthies DTSTART;TZID=Europe/Berlin:20230616T140000 DTEND;TZID=Europe/Berlin:20230616T153000 DTSTAMP:20260527T090434Z UID:0000001821@events.thp.uni-koeln.de DESCRIPTION:Anne Matthies\n\nthesis defense\n\n\n\nContact Person: Achim R osch LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Iman El Achchi DTSTART;TZID=Europe/Berlin:20230621T100000 DTEND;TZID=Europe/Berlin:20230621T113000 DTSTAMP:20260527T090434Z UID:0000001835@events.thp.uni-koeln.de DESCRIPTION:Iman El Achchi\n\nProgrammable Cooling on Noisy Quantum Comput ers: Implementation and Error Analysis(Master's Colloquium)\n\n\n\nContact Person: Aprem P. Joy LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Lasse Gresista DTSTART;TZID=Europe/Berlin:20230628T100000 DTEND;TZID=Europe/Berlin:20230628T113000 DTSTAMP:20260527T090434Z UID:0000001859@events.thp.uni-koeln.de DESCRIPTION:Lasse Gresista\n\nUnconventional pinch-point singularities in pyrochlore materials\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Bianca Bannenberg DTSTART;TZID=Europe/Berlin:20230630T140000 DTEND;TZID=Europe/Berlin:20230630T150000 DTSTAMP:20260527T090434Z UID:0000001850@events.thp.uni-koeln.de DESCRIPTION:Bianca Bannenberg\n\nBSc colloquium\n\n\n\nContact Person: Sim on Trebst LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Nicolas Dannenfeld DTSTART;TZID=Europe/Berlin:20230714T140000 DTEND;TZID=Europe/Berlin:20230714T153000 DTSTAMP:20260527T090434Z UID:0000001865@events.thp.uni-koeln.de DESCRIPTION:Nicolas Dannenfeld\n\nBachelor's Colloquim\n\n\n\nContact Pers on: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Florian Michael DTSTART;TZID=Europe/Berlin:20230714T130000 DTEND;TZID=Europe/Berlin:20230714T140000 DTSTAMP:20260527T090434Z UID:0000001867@events.thp.uni-koeln.de DESCRIPTION:Florian Michael\n\nMaster's Kolloquium\n\n\n\nContact Person: M. Rizzi LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Test speaker (no actual talk taking place) DTSTART;TZID=Europe/Berlin:20230728T230000 DTEND;TZID=Europe/Berlin:20230728T230100 DTSTAMP:20260527T090434Z UID:0000001869@events.thp.uni-koeln.de DESCRIPTION:Test speaker (no actual talk taking place)\n\nTest talk (no ac tual talk taking place)\n\nI am just testing the email and slack scripts\n \nContact Person: Lasse Gresista LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Theo Haas DTSTART;TZID=Europe/Berlin:20230804T140000 DTEND;TZID=Europe/Berlin:20230804T153000 DTSTAMP:20260527T090434Z UID:0000001870@events.thp.uni-koeln.de DESCRIPTION:Theo Haas\n\nML-assisted Quantum Error Correction for NISQ qua ntum processors\n\n\n\nContact Person: Simon Trebst LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Kai Klocke DTSTART;TZID=Europe/Berlin:20230804T100000 DTEND;TZID=Europe/Berlin:20230804T113000 DTSTAMP:20260527T090434Z UID:0000001871@events.thp.uni-koeln.de DESCRIPTION:Kai Klocke\, UC Berkeley\n\nMajorana Loop Models and Engineeri ng Criticality in Measurement-only Quantum Circuits\n\n\n\nContact Person: Michael Buchhold LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Reza Doostani DTSTART;TZID=Europe/Berlin:20230906T100000 DTEND;TZID=Europe/Berlin:20230906T113000 DTSTAMP:20260527T090434Z UID:0000001875@events.thp.uni-koeln.de DESCRIPTION:Reza Doostani\n\nRotating goldstone mode in XXZ heisenberg mo del\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Malte Pütz DTSTART;TZID=Europe/Berlin:20230911T100000 DTEND;TZID=Europe/Berlin:20230911T113000 DTSTAMP:20260527T090434Z UID:0000001885@events.thp.uni-koeln.de DESCRIPTION:Malte Pütz\n\ntba\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Verene Brehm DTSTART;TZID=Europe/Berlin:20230913T100000 DTEND;TZID=Europe/Berlin:20230913T113000 DTSTAMP:20260527T090434Z UID:0000001880@events.thp.uni-koeln.de DESCRIPTION:Verene Brehm\, Trondheim\, Norway\n\nMicromagnetic and atomist ic spin simulations: a semi-classical approach to modelling magnonics and neuromorphic spintronics.\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Malte Pütz DTSTART;TZID=Europe/Berlin:20231013T140000 DTEND;TZID=Europe/Berlin:20231013T153000 DTSTAMP:20260527T090434Z UID:0000001886@events.thp.uni-koeln.de DESCRIPTION:Malte Pütz\n\nEntanglement phase transitions in a shallow cir cuit for GHZ preparation: from Nishimori to percolation criticality\n\n\n\ nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Rene Wolters DTSTART;TZID=Europe/Berlin:20231018T100000 DTEND;TZID=Europe/Berlin:20231018T113000 DTSTAMP:20260527T090434Z UID:0000001879@events.thp.uni-koeln.de DESCRIPTION:Rene Wolters\n\nFunctional Renormalization Analysis of Critica lity in an Out-of-Equilibrium O(N)-Model\n\n\n\nContact Person: not specif ied LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Mikheil Tsitsishvili DTSTART;TZID=Europe/Berlin:20231025T100000 DTEND;TZID=Europe/Berlin:20231025T113000 DTSTAMP:20260527T090434Z UID:0000001889@events.thp.uni-koeln.de DESCRIPTION:Mikheil Tsitsishvili\n\nMeaurement induced phase transitions i n partly monitored free fermionic ladders\n\n\n\nContact Person: not speci fied LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Sagar Ramchandani DTSTART;TZID=Europe/Berlin:20231030T130000 DTEND;TZID=Europe/Berlin:20231030T143000 DTSTAMP:20260527T090434Z UID:0000001893@events.thp.uni-koeln.de DESCRIPTION:Sagar Ramchandani\n\nConstructing emergent U(1) symmetries (ma ster defense)\n\n\n\nContact Person: Sagar Ramchandani LOCATION:Seminar Room THP (old theory building) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tom Zander DTSTART;TZID=Europe/Berlin:20231108T100000 DTEND;TZID=Europe/Berlin:20231108T113000 DTSTAMP:20260527T090434Z UID:0000001890@events.thp.uni-koeln.de DESCRIPTION:Tom Zander\n\nSlow Modes in Dissipatively Stabilized Supercond uctors\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tobias Dörstel DTSTART;TZID=Europe/Berlin:20231115T100000 DTEND;TZID=Europe/Berlin:20231115T113000 DTSTAMP:20260527T090434Z UID:0000001888@events.thp.uni-koeln.de DESCRIPTION:Tobias Dörstel\n\nweak ergodicity breaking in monitored quant um circuits\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ihor Yatsuta DTSTART;TZID=Europe/Berlin:20231122T100000 DTEND;TZID=Europe/Berlin:20231122T113000 DTSTAMP:20260527T090434Z UID:0000001887@events.thp.uni-koeln.de DESCRIPTION:Ihor Yatsuta\n\nVacancies in Generic Kitaev liquids\n\n\n\nCon tact Person: Aprem LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Daniel Simm DTSTART;TZID=Europe/Berlin:20231124T140000 DTEND;TZID=Europe/Berlin:20231124T153000 DTSTAMP:20260527T090434Z UID:0000001891@events.thp.uni-koeln.de DESCRIPTION:Daniel Simm\n\nMonitored Kitaev Quantum Circuits\n\n\n\nContac t Person: not specified LOCATION:Seminar Room 0.03\, ETP and zoom (https://uni-koeln.zoom.us/j/977 15445124 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Romain Daviet DTSTART;TZID=Europe/Berlin:20231129T100000 DTEND;TZID=Europe/Berlin:20231129T113000 DTSTAMP:20260527T090434Z UID:0000001906@events.thp.uni-koeln.de DESCRIPTION:Romain Daviet\n\nNon-equilibrium criticality at the onset of t ime-crystalline order in O(N) models\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP and zoom (https://uni-koeln.zoom.us/j/977 15445124 ) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Karim Chahine DTSTART;TZID=Europe/Berlin:20231206T100000 DTEND;TZID=Europe/Berlin:20231206T113000 DTSTAMP:20260527T090434Z UID:0000001897@events.thp.uni-koeln.de DESCRIPTION:Karim Chahine\n\nEntanglement phases\, localization and multif ractality of monitored free fermions in two dimensions\n\n\n\nContact Pers on: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Martin Gembe DTSTART;TZID=Europe/Berlin:20231213T100000 DTEND;TZID=Europe/Berlin:20231213T113000 DTSTAMP:20260527T090434Z UID:0000001894@events.thp.uni-koeln.de DESCRIPTION:Martin Gembe\n\nFrustrated Magnetism\, Monopole Dynamics\, and Non-Coplanar Ordering in Classical Spin Systems (PhD defense)\n\n\n\nCont act Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Caroline Thiele DTSTART;TZID=Europe/Berlin:20231215T140000 DTEND;TZID=Europe/Berlin:20231215T144500 DTSTAMP:20260527T090434Z UID:0000001907@events.thp.uni-koeln.de DESCRIPTION:Caroline Thiele\n\nBachelor Colloquium\n\n\n\nContact Person: Simon Trebst LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Finn Eckstein DTSTART;TZID=Europe/Berlin:20240124T100000 DTEND;TZID=Europe/Berlin:20240124T113000 DTSTAMP:20260527T090434Z UID:0000001916@events.thp.uni-koeln.de DESCRIPTION:Finn Eckstein\n\nMaster's Kolloquim\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Hannah Durschmidt DTSTART;TZID=Europe/Berlin:20240126T140000 DTEND;TZID=Europe/Berlin:20240126T143000 DTSTAMP:20260527T090434Z UID:0000001921@events.thp.uni-koeln.de DESCRIPTION:Hannah Durschmidt\, AG Rosch\n\nBachelor Kolloquim\n\n\n\nCont act Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Orla Supple DTSTART;TZID=Europe/Berlin:20240130T090000 DTEND;TZID=Europe/Berlin:20240130T103000 DTSTAMP:20260527T090434Z UID:0000001926@events.thp.uni-koeln.de DESCRIPTION:Orla Supple\n\nContinuous Unitary Transformations (CUT) on a c avity QED (cQED) system and method for application to open systems\n\n\n\n Contact Person: not specified LOCATION:Seminar Room 0.02\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Aprem Joy DTSTART;TZID=Europe/Berlin:20240131T100000 DTEND;TZID=Europe/Berlin:20240131T113000 DTSTAMP:20260527T090434Z UID:0000001917@events.thp.uni-koeln.de DESCRIPTION:Aprem Joy\, AG Rosch\n\nGauge Field Dynamics in Kitaev Multila yers: Eloping of Visons\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Leon-Sacha Gernert DTSTART;TZID=Europe/Berlin:20240219T100000 DTEND;TZID=Europe/Berlin:20240219T113000 DTSTAMP:20260527T090434Z UID:0000001927@events.thp.uni-koeln.de DESCRIPTION:Leon-Sacha Gernert\n\nBachelor Colloquim\n\n\n\nContact Person : not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Mara Ludwig DTSTART;TZID=Europe/Berlin:20240307T100000 DTEND;TZID=Europe/Berlin:20240307T110000 DTSTAMP:20260527T090434Z UID:0000001928@events.thp.uni-koeln.de DESCRIPTION:Mara Ludwig\n\nBA-Kolloquium "Investigating Thermal Neural Qua ntum States”\n\n\n\nContact Person: Matteo Rizzi LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Kai Meinerz DTSTART;TZID=Europe/Berlin:20240315T140000 DTEND;TZID=Europe/Berlin:20240315T153000 DTSTAMP:20260527T090434Z UID:0000001918@events.thp.uni-koeln.de DESCRIPTION:Kai Meinerz\n\nPhD defense\n\n\n\nContact Person: Simon Trebst LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Theo Haas DTSTART;TZID=Europe/Berlin:20240322T110000 DTEND;TZID=Europe/Berlin:20240322T120000 DTSTAMP:20260527T090434Z UID:0000001934@events.thp.uni-koeln.de DESCRIPTION:Theo Haas\, Colgone\n\nMSc colloquium\n\n\n\nContact Person: S imon Trebst LOCATION:Seminar Room (old theory) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Malte Puetz DTSTART;TZID=Europe/Berlin:20240322T140000 DTEND;TZID=Europe/Berlin:20240322T150000 DTSTAMP:20260527T090434Z UID:0000001935@events.thp.uni-koeln.de DESCRIPTION:Malte Puetz\, Cologne\n\nMSc colloquium\n\n\n\nContact Person: Simon Trebst LOCATION:Seminar Room (old theory) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Lukas Sieberer DTSTART;TZID=Europe/Berlin:20240403T100000 DTEND;TZID=Europe/Berlin:20240403T113000 DTSTAMP:20260527T090434Z UID:0000001958@events.thp.uni-koeln.de DESCRIPTION:Lukas Sieberer\, Innsbruck\n\nGeneralized Zeno effect and enta nglement dynamics induced by fermion counting\n\n\n\nContact Person: not s pecified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Alla Bezvershenko DTSTART;TZID=Europe/Berlin:20240410T100000 DTEND;TZID=Europe/Berlin:20240410T113000 DTSTAMP:20260527T090434Z UID:0000001936@events.thp.uni-koeln.de DESCRIPTION:Alla Bezvershenko\n\nWalking Skyrmions\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Shang-Qiang Ning DTSTART;TZID=Europe/Berlin:20240415T160000 DTEND;TZID=Europe/Berlin:20240415T170000 DTSTAMP:20260527T090434Z UID:0000001964@events.thp.uni-koeln.de DESCRIPTION:Shang-Qiang Ning\, Chinese University of Hong Kong\n\nQuantum anomaly of symmetry on the boundary of topological phases: identification and application\n\nQuantum anomalies of symmetries are a kind of old quest ions in quantum field theory\, which have some new advancements over the p ast decades due to the development of topological phases of matter. In th is talk\, we will try to discuss some aspects of them in view of the topol ogical phases of matter\, including how to identify the anomaly of symmetr y of a theory (in particular\, 2+1D topological order) via so-called anom aly indicators\, and some applications of the quantum anomaly—enforced s ymmetry breaking and construction of 1D lattice model with anomalous symme try.\n\nContact Person: Guo-Yi Zhu LOCATION:Seminar Room (old theory) END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Adrian M Cabral DTSTART;TZID=Europe/Berlin:20240417T100000 DTEND;TZID=Europe/Berlin:20240417T113000 DTSTAMP:20260527T090434Z UID:0000001947@events.thp.uni-koeln.de DESCRIPTION:Adrian M Cabral\n\nActive Matter: pumping currents\n\n\n\nCont act Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Reza Doostani DTSTART;TZID=Europe/Berlin:20240429T160000 DTEND;TZID=Europe/Berlin:20240429T173000 DTSTAMP:20260527T090434Z UID:0000001944@events.thp.uni-koeln.de DESCRIPTION:Reza Doostani\n\nFlying Domain Walls in a Driven Ferrimagnet - Master's Defense\n\n\n\nContact Person: not specified LOCATION:Old Theory Seminar Room END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dr. Xiaoqi Sun DTSTART;TZID=Europe/Berlin:20240508T100000 DTEND;TZID=Europe/Berlin:20240508T113000 DTSTAMP:20260527T090434Z UID:0000001960@events.thp.uni-koeln.de DESCRIPTION:Dr. Xiaoqi Sun\, MPQ Garching\n\nEntanglement transition and m ultifractality in generic neural network quantum states\n\nNeural networks offer a novel approach to represent wave functions for solving quantum ma ny-body problems. It is of both theoretical interests and practical use to know what kinds of quantum states are efficiently represented by neural n etworks. In this talk\, we will address this question from a new perspecti ve from statistical mechanics by considering the ensemble property of rand om neural network quantum states. We show that these states are genericall y volume-law entangled and multifractal. Furthermore\, depending on networ k parameters\, there are entanglement phase transitions where one of the phases\, despite being still non-ergodic\, can reach nearly maximal entang lement.\n\nContact Person: Sebastian Diehl LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Zemin Huang DTSTART;TZID=Europe/Berlin:20240515T100000 DTEND;TZID=Europe/Berlin:20240515T113000 DTSTAMP:20260527T090434Z UID:0000001971@events.thp.uni-koeln.de DESCRIPTION:Zemin Huang\n\nQuantized observables in mixed states: topology \, interaction and phase transitions\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tobias Doerstel DTSTART;TZID=Europe/Berlin:20240605T100000 DTEND;TZID=Europe/Berlin:20240605T113000 DTSTAMP:20260527T090434Z UID:0000001962@events.thp.uni-koeln.de DESCRIPTION:Tobias Doerstel\n\nMaster's Defense\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Tom Zander DTSTART;TZID=Europe/Berlin:20240612T100000 DTEND;TZID=Europe/Berlin:20240612T113000 DTSTAMP:20260527T090434Z UID:0000001972@events.thp.uni-koeln.de DESCRIPTION:Tom Zander\n\nMaster's Defense\n\n\n\nContact Person: not spec ified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Johannes Lang DTSTART;TZID=Europe/Berlin:20240619T100000 DTEND;TZID=Europe/Berlin:20240619T113000 DTSTAMP:20260527T090434Z UID:0000001973@events.thp.uni-koeln.de DESCRIPTION:Johannes Lang\n\nReplica symmetry breaking in spin glasses in the replica-free Keldysh formalism\n\nA fresh derivation of Sompolinsky th eory\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Niklas Tausenpfund DTSTART;TZID=Europe/Berlin:20240626T100000 DTEND;TZID=Europe/Berlin:20240626T113000 DTSTAMP:20260527T090434Z UID:0000001985@events.thp.uni-koeln.de DESCRIPTION:Niklas Tausenpfund\n\nQuantum Simulation Of the Tricritical I sing Model in Tunable Josephson Junction Ladders\n\n\n\nContact Person: no t specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Roberto Gargiulo DTSTART;TZID=Europe/Berlin:20240703T100000 DTEND;TZID=Europe/Berlin:20240703T113000 DTSTAMP:20260527T090434Z UID:0000001986@events.thp.uni-koeln.de DESCRIPTION:Roberto Gargiulo\n\nComputing Classical Partition Functions: F rom Onsager and Kaufman to Quantum Algorithms\n\n\n\nContact Person: not s pecified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Julian Steffen DTSTART;TZID=Europe/Berlin:20240705T141500 DTEND;TZID=Europe/Berlin:20240705T144500 DTSTAMP:20260527T090434Z UID:0000002009@events.thp.uni-koeln.de DESCRIPTION:Julian Steffen\, University of Cologne\n\nBSc colloquium\n\n\n \nContact Person: Simon Trebst LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Thomas Mueller DTSTART;TZID=Europe/Berlin:20240710T100000 DTEND;TZID=Europe/Berlin:20240710T113000 DTSTAMP:20260527T090434Z UID:0000001983@events.thp.uni-koeln.de DESCRIPTION:Thomas Mueller\n\nPhD defense\n\n\n\nContact Person: not speci fied LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Armin Asadollahi DTSTART;TZID=Europe/Berlin:20240712T091500 DTEND;TZID=Europe/Berlin:20240712T104500 DTSTAMP:20260527T090434Z UID:0000002017@events.thp.uni-koeln.de DESCRIPTION:Armin Asadollahi\n\nBachelor Kolloquim\, KPZ behavior of van d er Pol oscillators\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Leonard Kaufhold DTSTART;TZID=Europe/Berlin:20240717T100000 DTEND;TZID=Europe/Berlin:20240717T113000 DTSTAMP:20260527T090434Z UID:0000001974@events.thp.uni-koeln.de DESCRIPTION:Leonard Kaufhold\n\nStability of Majorana Modes in SC-TI Hybri d Nanowires at Realistic Disorder Levels\n\n\n\nContact Person: not specif ied LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Nils Bartel DTSTART;TZID=Europe/Berlin:20240826T091500 DTEND;TZID=Europe/Berlin:20240826T100000 DTSTAMP:20260527T090434Z UID:0000002031@events.thp.uni-koeln.de DESCRIPTION:Nils Bartel\n\nOut-of-equilibrium dynamics of the intertwined order parameters in TiSe_2 (Bachelor Colloquim)\n\n\n\nContact Person: not specified LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Paul Römer DTSTART;TZID=Europe/Berlin:20240904T141500 DTEND;TZID=Europe/Berlin:20240904T150000 DTSTAMP:20260527T090434Z UID:0000002033@events.thp.uni-koeln.de DESCRIPTION:Paul Römer\n\nA Tensor Network Approach to Computational Flui d Dynamics (BSc defense)\n\n\n\nContact Person: Matteo Rizzi LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Vaishnavi Jayakumar DTSTART;TZID=Europe/Berlin:20240905T100000 DTEND;TZID=Europe/Berlin:20240905T113000 DTSTAMP:20260527T090434Z UID:0000002002@events.thp.uni-koeln.de DESCRIPTION:Vaishnavi Jayakumar\, University of Cologne\n\nPhD thesis defe nse\n\n\n\nContact Person: Simon Trebst / Ciaran Hickey LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Daniel Simm DTSTART;TZID=Europe/Berlin:20240906T100000 DTEND;TZID=Europe/Berlin:20240906T113000 DTSTAMP:20260527T090434Z UID:0000002013@events.thp.uni-koeln.de DESCRIPTION:Daniel Simm\n\nMSc defense\n\n\n\nContact Person: Simon Trebst LOCATION:Seminar Room 0.03\, ETP END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Johannes Weiss DTSTART;TZID=Europe/Berlin:20240913T110000 DTEND;TZID=Europe/Berlin:20240913T120000 DTSTAMP:20260527T090434Z UID:0000002039@events.thp.uni-koeln.de DESCRIPTION:Johannes Weiss\n\nEin Beitrag zu Reduced-Basis-Modeling mit un endlichen Matrix-Product-States (BSc Kolloquium)\n\n\n\nContact Person: Ma tteo Rizzi LOCATION:SR 0.01 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Sagar Ramchandani DTSTART;TZID=Europe/Berlin:20241009T100000 DTEND;TZID=Europe/Berlin:20241009T120000 DTSTAMP:20260527T090434Z UID:0000002057@events.thp.uni-koeln.de DESCRIPTION:Sagar Ramchandani\, University of Cologne\n\nConstructing Emer gent U(1) Symmetries in the Gamma-prime (Γ′ ) model\n\nFrustrated magne ts can elude the paradigm of spontaneous symmetry breaking and instead exh ibit emergent\nsymmetries at low temperatures. However\, the underlying me chanisms are often referred to as “accidental”\, i.e.\nmaking a predic tive connection between the microscopic couplings and symmetries of a frus trated magnet and\nits emergent symmetries often remains impossible and ca n only be resolved by a detailed study of its collective\nmagnetism. Here we report the explicit construction of a family of spin models that\, for a wide variety of lattice\ngeometries with triangular motifs in one\, two and three spatial dimensions\, such as the kagome or hyperkagome\nlattices \, exhibit an emergent\, continuous U(1) symmetry. This is particularly no table also because the underlying\nHamiltonian actually has very little sy mmetry — a bond-directional\, off-diagonal exchange model inspired by\nt he microscopics of spin-orbit entangled materials (the Gamma-prime model). We further discuss thermal order-\nby-disorder effects which lead to the formation of a Z6 symmetric phase of maximally non-coplanar states at low\ nbut finite temperatures and its implications for multi-stage thermal orde ring depending on spatial dimensionality.\nWe explore the thermodynamics f or representative one-\, two-\, and three-dimensional lattice geometries t racking\nthe emergent symmetries using Monte Carlo simulations. Finally\, we comment on the fate of the model in the\nquantum spin-1/2 limit.\n\nCon tact Person: Aprem Joy LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Anne Mathies DTSTART;TZID=Europe/Berlin:20241023T100000 DTEND;TZID=Europe/Berlin:20241023T120000 DTSTAMP:20260527T090434Z UID:0000002058@events.thp.uni-koeln.de DESCRIPTION:Anne Mathies\, AG Rosch\n\nThermalization and hydrodynamic lon g-time tails in Floquet systems\n\n\n\nContact Person: Aprem Joy LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Thomas Bömerich DTSTART;TZID=Europe/Berlin:20241030T100000 DTEND;TZID=Europe/Berlin:20241030T120000 DTSTAMP:20260527T090434Z UID:0000002063@events.thp.uni-koeln.de DESCRIPTION:Thomas Bömerich\, AG Rosch\n\nParallel-Field Hall effect in Z rTe₅\n\n\n\nContact Person: Aprem Joy LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Nikolaos Tsantidis DTSTART;TZID=Europe/Berlin:20241106T100000 DTEND;TZID=Europe/Berlin:20241106T120000 DTSTAMP:20260527T090434Z UID:0000002072@events.thp.uni-koeln.de DESCRIPTION:Nikolaos Tsantidis\, AG Trebst\n\nShadow tomography with coher ent errors\n\n\n\nContact Person: Aprem Joy LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Adrian Cabral DTSTART;TZID=Europe/Berlin:20241204T100000 DTEND;TZID=Europe/Berlin:20241204T110000 DTSTAMP:20260527T090434Z UID:0000002073@events.thp.uni-koeln.de DESCRIPTION:Adrian Cabral\, AG Rosch\n\nPumping currents and formation of flocks in 1D Ising model (Master Defense)\n\n\n\nContact Person: Aprem Joy LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Raphael Schulz DTSTART;TZID=Europe/Berlin:20241204T110000 DTEND;TZID=Europe/Berlin:20241204T120000 DTSTAMP:20260527T090434Z UID:0000002088@events.thp.uni-koeln.de DESCRIPTION:Raphael Schulz\, AG Rosch\n\nBachelor Colloquium\n\n\n\nContac t Person: Aprem LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Carl Zelle DTSTART;TZID=Europe/Berlin:20241206T143000 DTEND;TZID=Europe/Berlin:20241206T160000 DTSTAMP:20260527T090434Z UID:0000002064@events.thp.uni-koeln.de DESCRIPTION:Carl Zelle\, AG Diehl\n\nUniversality in Time-Crystalline Matt er\n\n\n\nContact Person: Carl Zelle LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Alla Bezvershenko DTSTART;TZID=Europe/Berlin:20241211T100000 DTEND;TZID=Europe/Berlin:20241211T113000 DTSTAMP:20260527T090434Z UID:0000002076@events.thp.uni-koeln.de DESCRIPTION:Alla Bezvershenko\, AG Rosch\n\nPushing and Shaking of Skyrmio n Lattices\n\n\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Aprem P. joy DTSTART;TZID=Europe/Berlin:20241213T140000 DTEND;TZID=Europe/Berlin:20241213T153000 DTSTAMP:20260527T090434Z UID:0000002062@events.thp.uni-koeln.de DESCRIPTION:Aprem P. joy\, AG Rosch\n\nDynamics and Signatures of an Emerg ent Gauge Field (PhD Defense)\n\n\n\nContact Person: Aprem Joy LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Lasse Gresista DTSTART;TZID=Europe/Berlin:20250108T100000 DTEND;TZID=Europe/Berlin:20250108T113000 DTSTAMP:20260527T090434Z UID:0000002110@events.thp.uni-koeln.de DESCRIPTION:Lasse Gresista\, AG Trebst\n\nThe role of quantum fluctuations for pyrochlore rare-earth oxides\n\n\n\nContact Person: Aprem Joy LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ahana Ghoshal DTSTART;TZID=Europe/Berlin:20250110T100000 DTEND;TZID=Europe/Berlin:20250110T113000 DTSTAMP:20260527T090434Z UID:0000002255@events.thp.uni-koeln.de DESCRIPTION:Ahana Ghoshal\, University of Siegen\n\nTo be announced\n\n\n\ nContact Person: Silvia Pappalardi LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Arnau Lira Solanilla DTSTART;TZID=Europe/Berlin:20250115T100000 DTEND;TZID=Europe/Berlin:20250115T113000 DTSTAMP:20260527T090434Z UID:0000002083@events.thp.uni-koeln.de DESCRIPTION:Arnau Lira Solanilla\, AG Pappalardi\n\nMultipartite entanglem ent structure of monitored quantum circuits\n\n\n\nContact Person: Aprem J oy LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Quinten Preiß DTSTART;TZID=Europe/Berlin:20250116T153000 DTEND;TZID=Europe/Berlin:20250116T163000 DTSTAMP:20260527T090434Z UID:0000002106@events.thp.uni-koeln.de DESCRIPTION:Quinten Preiß\, University of Cologne\n\nMid-term talk\n\n\n\ nContact Person: Simon Trebst LOCATION:0.02 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Josef Willsher DTSTART;TZID=Europe/Berlin:20250122T100000 DTEND;TZID=Europe/Berlin:20250122T113000 DTSTAMP:20260527T090434Z UID:0000002111@events.thp.uni-koeln.de DESCRIPTION:Josef Willsher\, TU Munich\n\nDynamics and stability of U(1) s pin liquids beyond mean-field theory’\n\n\n\nContact Person: Achim Rosch LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Zihan Cheng DTSTART;TZID=Europe/Berlin:20250129T160000 DTEND;TZID=Europe/Berlin:20250129T173000 DTSTAMP:20260527T090434Z UID:0000002119@events.thp.uni-koeln.de DESCRIPTION:Zihan Cheng\, UT Austin\n\nEmergent unitary designs for encode d qubits from coherent errors and syndrome measurements\n\nUnitary k-desig ns are distributions of unitary gates that match the Haar distribution up to its k-th statistical moment. They are a crucial resource for randomized quantum protocols. However\, their implementation on encoded logical qubi ts is nontrivial due to the need for magic gates\, which can require a lar ge resource overhead. In this work\, we propose an efficient approach to g enerate unitary designs for encoded qubits in surface codes by applying lo cal unitary rotations (''coherent errors'') on the physical qubits followe d by syndrome measurement and error correction. We prove that under some c onditions on the coherent errors and on the error correcting code\, this p rocess induces a unitary transformation of the logical subspace.\nWe numer ically show that the ensemble of logical unitaries converges to a unitary design in the thermodynamic limit\, provided the density or strength of co herent errors is above a finite threshold.\n\nContact Person: Simon Trebst LOCATION:Zoom END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Alan Sherry DTSTART;TZID=Europe/Berlin:20250213T153000 DTEND;TZID=Europe/Berlin:20250213T163000 DTSTAMP:20260527T090434Z UID:0000002134@events.thp.uni-koeln.de DESCRIPTION:Alan Sherry\, ICTS (Bengaluru)\n\nMeasurement-invisible quantu m correlations in scrambling dynamics\n\nIf two parts of a quantum system are entangled\, the common lore suggests that measurements on one of the p arts leave telltale signatures on the state of the other. Here we show tha t this lore is not necessarily true—in generic scrambling dynamics withi n a tripartite setting (with R \, S \, and E labeling the three parts) \, a new kind of dynamical phase emerges\, wherein local measurements on S are invisible to one of the remaining two parts\, say R \, despite the re existing non-trivial quantum correlations and entanglement between R and S . At the heart of this lies the fact that information scrambling tr ansmutes local quantum information into a complex non-local web of spatiot emporal quantum correlations. This non-locality in the information then me ans that ignorance of the state of part E can leave R and S with suf ficient information for them to be quantum correlated or entangled but not enough for measurements on S to have a non-trivial backaction on the st ate of R . This new dynamical phase is sandwiched between two conventiona lly expected phases where R and S are either disentangled from each ot her or are entangled along with non-trivial measurement backaction. This p rovides a new characterization of entanglement phases in terms of their re sponse to measurements instead of the more ubiquitous measurement-induced entanglement transitions. Our results have implications for the kind of ta sks that can be performed using measurement feedback within the framework of quantum interactive dynamics.\n\nContact Person: Xhek Turkeshi LOCATION:0.02 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Meret Preuß DTSTART;TZID=Europe/Berlin:20250312T100000 DTEND;TZID=Europe/Berlin:20250312T113000 DTSTAMP:20260527T090434Z UID:0000002148@events.thp.uni-koeln.de DESCRIPTION:Meret Preuß\, Oldenburg\n\nGround State of the Bose-Hubbard T rimer : Novel Variational Approaches\n\nIn the talk\, I show how I approa ched the variational construction of the ground state wave function of the Bose-Hubbard trimer from a classical point of view. The key idea behind t he test function construction is to leverage the similarity of basis state s in terms of site occupations and interaction energy with respect to the quantum analog of the classical ground state. Within five different approa ches\, ground state occupations are modeled and tested against numerical d iagonalization procedures. With this analysis\, I give an example of how a system's classical behavior can sometimes help to better understand its quantum essence. Plus\, my calculations allow for a notable reduction of c omputational effort\, especially for large systems.\n\nContact Person: Sim on Trebst LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Thomas Boemerich DTSTART;TZID=Europe/Berlin:20250326T100000 DTEND;TZID=Europe/Berlin:20250326T113000 DTSTAMP:20260527T090434Z UID:0000002146@events.thp.uni-koeln.de DESCRIPTION:Thomas Boemerich\, AG Rosch\n\nPh.D. Defense\n\n\n\nContact Pe rson: Thomas Boemerich LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Konrad Schröder DTSTART;TZID=Europe/Berlin:20250423T100000 DTEND;TZID=Europe/Berlin:20250423T113000 DTSTAMP:20260527T090434Z UID:0000002175@events.thp.uni-koeln.de DESCRIPTION:Konrad Schröder\, AG Rizzi\n\nInvestigation of Rydberg-Atom Quantum Simulators via finite PEPS (mid-term talk)\n\n\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jonas Wattendorff DTSTART;TZID=Europe/Berlin:20250430T100000 DTEND;TZID=Europe/Berlin:20250430T113000 DTSTAMP:20260527T090434Z UID:0000002168@events.thp.uni-koeln.de DESCRIPTION:Jonas Wattendorff\, RWTH Aachen\n\nTwo Monte Carlo Studies: Su blattice-Selective Percolation and The Critical Casimir Force\n\nBachelors thesis: Percolation provides a remarkably simple route to non-trivial cri tical phenomena\, which have a broad range of applications in many fields of science and engineering. In conventional site percolation\, all lattice sites are occupied with the same probability. For a bipartite lattice\, s ublattice-selective percolation instead involves two independent occupatio n probabilities\, depending on the sublattice to which a given site belong s. [1]\n\nMaster thesis: The Critical Casimir Force arises when a physical system near a continuous phase transition is confined by boundaries\, bec ause the long-range thermal fluctuations are cut off. By tuning the univer sality class of the boundaries\, a diverse range of behaviors of the Criti cal Casimir Force can be observed. Monte Carlo simulations of spin models enable quantitative predictions of these effects.\n\n[1] Phys. Rev. E 109\ , 044108\n\nContact Person: Fabian Kugler\, Simon Trebst LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Partha Sarker DTSTART;TZID=Europe/Berlin:20250507T100000 DTEND;TZID=Europe/Berlin:20250507T113000 DTSTAMP:20260527T090434Z UID:0000002147@events.thp.uni-koeln.de DESCRIPTION:Partha Sarker\, AG Seifert\n\nFrustrated multipolar degrees of freedom: The quadrupolar Kitaev model (mid-term talk)\n\n\n\nContact Pers on: Urban Seifert LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Dennis Hardt DTSTART;TZID=Europe/Berlin:20250514T100000 DTEND;TZID=Europe/Berlin:20250514T113000 DTSTAMP:20260527T090434Z UID:0000002155@events.thp.uni-koeln.de DESCRIPTION:Dennis Hardt\, AG Rosch\n\nDynamics of Active Magnetic and Non -Equilibrium Systems (PhD defense)\n\n\n\nContact Person: Sagar Ramchandan i LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Jiaxin Qiao DTSTART;TZID=Europe/Berlin:20250521T100000 DTEND;TZID=Europe/Berlin:20250521T113000 DTSTAMP:20260527T090434Z UID:0000002176@events.thp.uni-koeln.de DESCRIPTION:Jiaxin Qiao\, AG Trebst\n\nSymmetry-deformed toric codes and t he quantum dimer model\n\nMotivated by the recent introduction of a U (1)- symmetric toric code model\, we investigate symmetry-based deformations of topological order by systematically deconstructing the Gauss-law-enforcin g star terms of the toric code (TC) Hamiltonian. This “term-dropping” protocol introduces global or subsystem symmetries that go beyond the alte rnative framework of “ungauging” topological order in symmetry-deforme d models and gives rise to models such as the U (1)TC and XY TC. However\, we demonstrate that these models do not support topological or fracton or der (as has been conjectured in the literature) due to the loss of (emerge nt) gauge symmetry. An extreme deformation of the TC is the quantum dimer model (QDM)\, which we discuss along the family of symmetry-deformed model s from the perspective of (emergent) subsystem symmetries\, sublattice mod ulation\, and quantum order-by-disorder mechanisms resulting in rich phase diagrams. For the QDM this allows us to identify an emergent SO(2) symmet ry for what appears to be a gapless ground state (by numerical standards) that is unstable to the formation of a plaquette valence bond solid upon s ublattice modulation.\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Nikos Tsantidis DTSTART;TZID=Europe/Berlin:20250528T100000 DTEND;TZID=Europe/Berlin:20250528T113000 DTSTAMP:20260527T090434Z UID:0000002166@events.thp.uni-koeln.de DESCRIPTION:Nikos Tsantidis\, AG Trebst\n\nMaster Defense\n\n\n\nContact P erson: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Zemin Huang DTSTART;TZID=Europe/Berlin:20250604T100000 DTEND;TZID=Europe/Berlin:20250604T113000 DTSTAMP:20260527T090434Z UID:0000002179@events.thp.uni-koeln.de DESCRIPTION:Zemin Huang\, AG Diehl\n\nTopological response in open quantum systems with weak symmetries\n\nIn open quantum systems\, the interaction of the system with its environment gives rise to two types of symmetry: a strong one\, where the system’s symmetry charge is conserved exactly\, and a weak one\, where the symmetry charge can be exchanged with the envir onment but remains conserved on average. While generic open quantum system s feature weak symmetries only\, the symmetry protected topological respon se for bosonic/spin systems has only been considered in the stricter setup with additional strong symmetries. Here\, we address the generic case and demonstrate that weak symmetries alone can protect topological responses that distinguish different phases of matter. For bosonic systems\, focusin g on one-dimensional mixed states described by locally purifiable density operators\, we propose a quantized response characterizing qualitatively d istinct phases. It is detectable via the decay behavior of different strin g order parameters. We validate our general results through a noisy Afflec k-Kennedy-Lieb-Tasaki model. In particular\, we show that the coupling to the environment can induce a phase transition to a state protected by weak symmetries\, without a pure-state or strong-symmetry analog.\n\nContact P erson: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Lukas Reich DTSTART;TZID=Europe/Berlin:20250618T100000 DTEND;TZID=Europe/Berlin:20250618T113000 DTSTAMP:20260527T090434Z UID:0000002170@events.thp.uni-koeln.de DESCRIPTION:Lukas Reich\, AG Rizzi\n\nVariational tensor networks using pa rton construction (mid-term talk)\n\n\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Bianca Bannenberg DTSTART;TZID=Europe/Berlin:20250625T100000 DTEND;TZID=Europe/Berlin:20250625T113000 DTSTAMP:20260527T090434Z UID:0000002167@events.thp.uni-koeln.de DESCRIPTION:Bianca Bannenberg\, AG Trebst\n\nMonitored quantum circuits in 3D Kitaev models\n\nA first step toward Floquet-based self-correcting qua ntum memories\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Gustav John DTSTART;TZID=Europe/Berlin:20250702T100000 DTEND;TZID=Europe/Berlin:20250702T113000 DTSTAMP:20260527T090434Z UID:0000002178@events.thp.uni-koeln.de DESCRIPTION:Gustav John\, AG Diehl\n\nNon-equilibrium universality beyond KPZ (midterm talk)\n\n\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Elisa Vallini DTSTART;TZID=Europe/Berlin:20250709T100000 DTEND;TZID=Europe/Berlin:20250709T113000 DTSTAMP:20260527T090434Z UID:0000002171@events.thp.uni-koeln.de DESCRIPTION:Elisa Vallini\, AG Pappalardi\n\nFree cumulants dynamics and l ong-time freeness in the kicked top\n\n\n\nContact Person: Sagar Ramchanda ni LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Gianluca Morettini DTSTART;TZID=Europe/Berlin:20250716T100000 DTEND;TZID=Europe/Berlin:20250716T113000 DTSTAMP:20260527T090434Z UID:0000002228@events.thp.uni-koeln.de DESCRIPTION:Gianluca Morettini\, LPTMS - Université Paris-Saclay\n\nTherm alization via energy-filters and unconventional transport in the presence of quantum many-body scars\n\nThe Eigenstate Thermalization Hypothesis (ET H) plays a fundamental role in the theoretical understanding of equilibrat ion in many-body quantum systems. Despite its importance\, simulating the thermalization process in such systems remains a big challenge. A promisin g recent approach to address this difficulty involves the use of energy-fi ltered states. In the first part of this seminar\, I will outline the key properties of these states and illustrate how they provide valuable insigh ts into quantum thermalization processes [1]. Nonetheless\, recent investi gations have identified rare eigenstates\, known as quantum many-body scar states\, which evade thermalization and violate the ETH. These nonthermal states have been experimentally observed in physically relevant platforms \, such as Rydberg-atom arrays\, and are associated with atypical dynamics that are not yet fully understood. In the second part of the seminar\, I will present a recent example of an unconventional transport mechanism lin ked to these scarred systems [2].\n\n[1] G. Morettini\, L. Capizzi\, M. Fa gotti\, L. Mazza\, Energy-filtered quantum states and the emergence of non -local correlations\, PRL 133\, 240401 (2024)\n\n[2] G. Morettini\, L. Cap izzi\, M. Fagotti\, L. Mazza\, Unconventional Transport in a System with a Tower of Quantum Many-Body Scars\, arXiv:2502.10387 (2025)\n\nContact Per son: Matteo Rizzi LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Quinten Preiß DTSTART;TZID=Europe/Berlin:20250822T140000 DTEND;TZID=Europe/Berlin:20250822T150000 DTSTAMP:20260527T090434Z UID:0000002237@events.thp.uni-koeln.de DESCRIPTION:Quinten Preiß\, THP\n\nMonitoredQuantumCircuits.jl: A Julia F ramework for Designing and Executing Monitored Quantum Circuits - Master D efense\n\nA dual workflow involving both classical simulation and executio n on real quan-\ntum computers has become essential in quantum circuit res earch. Additionally\,\nincorporating measurements not only at the end but also as mid-circuit operations\nhas recently attracted significant interes t\, particularly within quantum condensed\nmatter physics. These so-called monitored quantum circuits can exhibit unique\nentanglement properties th at challenge traditional intuitions regarding measure-\nment and projectio n. This thesis introduces MonitoredQuantumCircuits.jl\, a new\nJulia-based framework designed specifically to simplify and unify this dual work-\nfl ow\, facilitating research concerned with monitored quantum circuits.\n\nC ontact Person: Simon Trebst LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Erik Weerda DTSTART;TZID=Europe/Berlin:20250915T100000 DTEND;TZID=Europe/Berlin:20250915T113000 DTSTAMP:20260527T090434Z UID:0000002243@events.thp.uni-koeln.de DESCRIPTION:Erik Weerda\, Uni zu Köln\n\nQuantum Matter and Tensor Networ ks in Two Dimensions -- PhD Defense\n\n\n\nContact Person: Matteo Rizzi LOCATION:0.02 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Mark Hannappel DTSTART;TZID=Europe/Berlin:20250922T140000 DTEND;TZID=Europe/Berlin:20250922T150000 DTSTAMP:20260527T090434Z UID:0000002244@events.thp.uni-koeln.de DESCRIPTION:Mark Hannappel\, University of Cologne\n\nTo be announced (B.S c. Colloquium)\n\n\n\nContact Person: Urban Seifert LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ahana Ghoshal DTSTART;TZID=Europe/Berlin:20250930T100000 DTEND;TZID=Europe/Berlin:20250930T113000 DTSTAMP:20260527T090434Z UID:0000002256@events.thp.uni-koeln.de DESCRIPTION:Ahana Ghoshal\, University of Siegen\n\nOptimising measurement of correlators for fermionic quantum simulators\n\nSimulating many-body f ermionic systems in conventional qubit-based quantum computers poses signi ficant challenges due to the overheads associated with the encoding of fer mionic statistics in qubits\, leading to the proposal of native fermionic simulators as an alternative. While allowing for fermionic problems to be simulated efficiently\, this class of fermionic simulators carries also sp ecific constraints with them and poses other challenges unfamiliar to qubi t systems. Here\, by pairing fermionic modes to form second quantised qubi ts\, we show that the fermionic gates can be represented as rotations of t he second-quantised qubits\, enabling adaptation of methods for qubit syst ems. As an application\, we use this pairing scheme to represent the measu rement of two- and four-point correlators in fermionic simulators with its native gates as a graph problem. Optimising measurement settings is then analysed with various analytical and algorithmic methods.\n\nContact Pers on: Silvia Pappalardi LOCATION:PH2 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Niklas Tausendpfund DTSTART;TZID=Europe/Berlin:20251008T100000 DTEND;TZID=Europe/Berlin:20251008T113000 DTSTAMP:20260527T090434Z UID:0000002214@events.thp.uni-koeln.de DESCRIPTION:Niklas Tausendpfund\, AG Rizzi\n\nOn the Design and Characteri zation of Exotic Phases in One Dimension (PhD defense)\n\n\n\nContact Pers on: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Aleksandrs Zacinskis DTSTART;TZID=Europe/Berlin:20251015T100000 DTEND;TZID=Europe/Berlin:20251015T113000 DTSTAMP:20260527T090434Z UID:0000002261@events.thp.uni-koeln.de DESCRIPTION:Aleksandrs Zacinskis\, Heidelberg University\n\nBenchmarking R eal-Frequency DMFT: A Comprehensive Study of the Hubbard Model with Exact Diagonalization and Natural Orbitals\n\nDynamical Mean-Field Theory (DMFT) has become a powerful tool for studying materials with correlated electro ns. However\, most DMFT solvers operate on imaginary Matsubara frequencies \, making the extraction of accurate spectral functions challenging due to the need for analytical continuation. Here\, we perform DMFT calculations using a real-frequency solver implemented in Quanty. This implementation utilizes a one-particle basis of natural impurity orbitals [1] to investig ate correlated model systems with local interactions. We systematically st udy the Hubbard model\, focusing on the critical interaction strength for the metal–insulator transition and the chemical potential as a function of filling\, while comparing different bath discretization strategies and numerical cutoffs that control the Hilbert space size. In addition\, we co mpare the Dyson equation and equations-of-motion methods for calculating t he self-energy and analyze the impact of finite broadening in the self-con sistency loop. Our results demonstrate robust and satisfactory convergence at moderate computational costs\, validating the reliability of this appr oach. All calculations were performed using the open-source quantum many-b ody code Quanty (www.quanty.org)\, emphasizing its accessibility for broad er applications in correlated electron systems.\n[1] Phys. Rev. B 90\, 085 102 (2014)\n\nContact Person: Fabian Kugler LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Kang Yang DTSTART;TZID=Europe/Berlin:20251029T100000 DTEND;TZID=Europe/Berlin:20251029T113000 DTSTAMP:20260527T090434Z UID:0000002293@events.thp.uni-koeln.de DESCRIPTION:Kang Yang\, FU Berlin\n\nEngineering non-Abelian Berry curvatu res via dissipation\n\nGeometric phases and Berry curvatures are features of physical states following adiabatic evolutions. They lead to rich pheno mena in transports and topological phases in metals. Many these interestin g properties can also arise in photons transmitting in periodic media. The re\, dissipation provides another controlling method and gives rise to eff ective non-Hermitian evolutions. In this seminar\, I will demonstrate a ne w form of topological transition in parity-time symmetric systems\, where upon increasing loss and gain\, the eigenstates can spontaneously break th e symmetry. Their non-Abelian Berry curvatures quantise qualitatively diff erently across the symmetry breaking. I will show that the sponntaneous PT -breaking obeys a universal topological duality principle: the topology of the eigenstates must remain conserved\, but it manifests as Euler numbers in the symmetry-preserving regime while as Chern numbers in the symmetry- breaking regime. This contrast paradigm to conventional topological transi tions originates from the coexistence of two different gauge structures th at goes beyond Cartan's symmetric spaces. The results demonstrate that los s and gain can engineer non-Abelian gauge structures and provide new ideas to prepare topological bands.\n\nContact Person: Sebastian Diehl LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Konrad Schröder DTSTART;TZID=Europe/Berlin:20251031T150000 DTEND;TZID=Europe/Berlin:20251031T160000 DTSTAMP:20260527T090434Z UID:0000002280@events.thp.uni-koeln.de DESCRIPTION:Konrad Schröder\, Uni zu Köln\n\nInvestigation of Rydberg At om Quantum Simulators via finite Projected Entangled Pair States (MA-Koll) \n\n\n\nContact Person: M. Rizzi LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Partha Sarker DTSTART;TZID=Europe/Berlin:20251105T100000 DTEND;TZID=Europe/Berlin:20251105T113000 DTSTAMP:20260527T090434Z UID:0000002258@events.thp.uni-koeln.de DESCRIPTION:Partha Sarker\, University of Cologne\n\nPhases and dynamics o f frustrated multipolar magnets: the quadrupolar Kitaev model (Master's de fense)\n\nFrustrated spin systems are a platform for a multitude of exotic physical phenomena. Although models involving frustrated spin interaction s have been studied in great detail over the last few decades\, the study of frustrated multipolar exchange interaction has only started to gain mom entum in recent years. A recent numerical study involving frustrated quadr upolar interaction for $S = 1$ on honeycomb lattice has provided evidence of deconfined phase with $\\mathbb{Z}_2$ topological order. The thesis del ves extensively into different properties of this quadrupolar spin-$1$ Ham iltonian.\n\nIn the absence of exact solution of the frustrated quadrupola r model\, we employ several mean field methods to analyze different parame ter regimes of the model. We have found that the quadrupolar Hamiltonian h as extreme degeneracy by probing it with deformations in the framework of generalized spin wave theory. A formulation of mean field ground states ca n explain this extensive degeneracy at the isotropic point. Away from the isotropic point\, the Hamiltonian does not show any evidence of topologica l ground state degeneracy. Furthermore\, we also analyze the exact symmetr ies of the model using parton construction showcasing the presence of deco nfined excitations. Finally\, we employ parton mean field theory to analyz e the different phase properties of the model at different parameter regim e.\n\nContact Person: Urban Seifert LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ajesh Kumar DTSTART;TZID=Europe/Berlin:20251112T100000 DTEND;TZID=Europe/Berlin:20251112T113000 DTSTAMP:20260527T090434Z UID:0000002262@events.thp.uni-koeln.de DESCRIPTION:Ajesh Kumar\, AG Rosch\n\nCorrelated Electron Phenomena from I nterlayer Exciton Condensation in van der Waals Materials\n\nRecent experi ments on bilayer semiconductors have revealed long-lived interlayer excito ns and provided indications of exciton condensation through tuning gate vo ltages. These developments open new possibilities for engineering strongly correlated electronic phases in controllable settings.\n\nIn this talk\, I will explore how interlayer exciton condensation in the presence of dope d charge carriers can be utilized to engineer a variety of correlation-dri ven phenomena. I will first show how such systems can emulate spin-density -wave quantum criticality observed in correlated electron materials\, and discuss the resulting prospects for unconventional superconductivity. I wi ll then turn to multilayer heterostructures\, where exciton condensation c an result in a marginal Fermi liquid phase without the need for fine-tunin g to a quantum critical point.\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Lasse Gresista DTSTART;TZID=Europe/Berlin:20251128T140000 DTEND;TZID=Europe/Berlin:20251128T153000 DTSTAMP:20260527T090434Z UID:0000002245@events.thp.uni-koeln.de DESCRIPTION:Lasse Gresista\, University of Cologne\n\nExploring quantum ma gnetism in moiré\, maple-leaf and pyrochlore materials via functional ren ormalization (PhD defense)\n\n\n\nContact Person: Simon Trebst LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Mousa Kandah DTSTART;TZID=Europe/Berlin:20251203T100000 DTEND;TZID=Europe/Berlin:20251203T113000 DTSTAMP:20260527T090434Z UID:0000002265@events.thp.uni-koeln.de DESCRIPTION:Mousa Kandah\, AG Trebst\n\nEntanglement Dynamics of the Monit ored Kitaev Model with Twist Defects (Midterm talk)\n\n\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Gustav John DTSTART;TZID=Europe/Berlin:20251210T100000 DTEND;TZID=Europe/Berlin:20251210T113000 DTSTAMP:20260527T090434Z UID:0000002266@events.thp.uni-koeln.de DESCRIPTION:Gustav John\, AG Diehl\n\nNonequilibrium Universality beyond K PZ\n\n\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Konstantin Jacoby DTSTART;TZID=Europe/Berlin:20251219T140000 DTEND;TZID=Europe/Berlin:20251219T151500 DTSTAMP:20260527T090434Z UID:0000002317@events.thp.uni-koeln.de DESCRIPTION:Konstantin Jacoby\, AG Rosch\n\nOn the arrow of time in period ically driven quantum spin chains (Bachelor defense)\n\n\n\nContact Person : Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Fotios Gkritsis DTSTART;TZID=Europe/Berlin:20260114T100000 DTEND;TZID=Europe/Berlin:20260114T113000 DTSTAMP:20260527T090434Z UID:0000002268@events.thp.uni-koeln.de DESCRIPTION:Fotios Gkritsis\, Covestro / AG Gross\n\nPhD defense\n\n\n\nCo ntact Person: David Gross LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Nicolas Dannenfeld DTSTART;TZID=Europe/Berlin:20260123T140000 DTEND;TZID=Europe/Berlin:20260123T150000 DTSTAMP:20260527T090434Z UID:0000002325@events.thp.uni-koeln.de DESCRIPTION:Nicolas Dannenfeld\, AG Rizzi\n\nReduced Basis Modeling using two dimensional Tensor Networks (midterm talk)\n\n\n\nContact Person: Saga r Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Malte Pütz DTSTART;TZID=Europe/Berlin:20260128T100000 DTEND;TZID=Europe/Berlin:20260128T113000 DTSTAMP:20260527T090434Z UID:0000002267@events.thp.uni-koeln.de DESCRIPTION:Malte Pütz\, AG Trebst\n\nLearning transitions\n\n\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Lukas Reich DTSTART;TZID=Europe/Berlin:20260204T100000 DTEND;TZID=Europe/Berlin:20260204T113000 DTSTAMP:20260527T090434Z UID:0000002324@events.thp.uni-koeln.de DESCRIPTION:Lukas Reich\, AG Rizzi\n\nParton Trial wave functions for vari ational tensor networks\n\n\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Ali Can Yildirim DTSTART;TZID=Europe/Berlin:20260227T140000 DTEND;TZID=Europe/Berlin:20260227T153000 DTSTAMP:20260527T090434Z UID:0000002335@events.thp.uni-koeln.de DESCRIPTION:Ali Can Yildirim\, Uni zu Köln\n\nFermionic Neural Quantum St ates for the disorder-driven Superconductor-Insulator Transition (Master K olloquium)\n\n\n\nContact Person: Matteo Rizzi LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Noah Elbracht DTSTART;TZID=Europe/Berlin:20260227T153000 DTEND;TZID=Europe/Berlin:20260227T163000 DTSTAMP:20260527T090434Z UID:0000002337@events.thp.uni-koeln.de DESCRIPTION:Noah Elbracht\, AG Rizzi\n\nNumerical Investigation of Bubble Formation in 2D Ising Models via Tree Tensor Networks (Midterm talk)\n\n\n \nContact Person: Sagar Ramchandani LOCATION:215 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Bianca Bannenberg DTSTART;TZID=Europe/Berlin:20260325T090000 DTEND;TZID=Europe/Berlin:20260325T100000 DTSTAMP:20260527T090434Z UID:0000002359@events.thp.uni-koeln.de DESCRIPTION:Bianca Bannenberg\, AG Trebst\n\nThree-dimensional Hastings-Ha ah codes (Masters defense)\n\n\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Laurent Hartwich DTSTART;TZID=Europe/Berlin:20260325T150000 DTEND;TZID=Europe/Berlin:20260325T154500 DTSTAMP:20260527T090434Z UID:0000002368@events.thp.uni-koeln.de DESCRIPTION:Laurent Hartwich\, Uni zu Köln\n\nInvestigation of Real-Time Evolution in Finite Projected Entangled Pair States (BA-Koll)\n\n\n\nConta ct Person: Matteo Rizzi LOCATION:0.02 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Daiki Sasamoto DTSTART;TZID=Europe/Berlin:20260417T140000 DTEND;TZID=Europe/Berlin:20260417T150000 DTSTAMP:20260527T090434Z UID:0000002377@events.thp.uni-koeln.de DESCRIPTION:Daiki Sasamoto\, AG Trebst\n\nSpin Dynamics in Quantum Spin Li quids: A Spinon Perspective\n\n\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Armin Asadollahi DTSTART;TZID=Europe/Berlin:20260422T100000 DTEND;TZID=Europe/Berlin:20260422T113000 DTSTAMP:20260527T090434Z UID:0000002362@events.thp.uni-koeln.de DESCRIPTION:Armin Asadollahi\, AG Diehl\n\nAnomalous transport in the 1d H eisenberg model (Midterm talk)\n\n\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Sagar Ramchandani DTSTART;TZID=Europe/Berlin:20260429T100000 DTEND;TZID=Europe/Berlin:20260429T113000 DTSTAMP:20260527T090434Z UID:0000002366@events.thp.uni-koeln.de DESCRIPTION:Sagar Ramchandani\, AG Trebst\n\nExploring the Nonlinear Magne tic Response of FeI₂ via Two-Dimensional Coherent Spectroscopy\n\nNonlin ear THz spectroscopy has emerged as a powerful method to extract new\ninfo rmation beyond conventional linear response. In this work\, we employ a\ns emi-classical approach to 2-dimensional coherent spectroscopy (2DCS)\, \ni mplemented in the context of the Sunny Julia package for modelling atomic- scale\nmagnetism. We apply this framework to explore the nonlinear respons e of FeI₂\,\na 2D spin-1 antiferromagnet with hybridized dipolar-quadrup olar fluctuations\,\nto reveal its rich nonlinear dynamics.\n\nContact Per son: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Nils Bartel DTSTART;TZID=Europe/Berlin:20260506T100000 DTEND;TZID=Europe/Berlin:20260506T113000 DTSTAMP:20260527T090434Z UID:0000002363@events.thp.uni-koeln.de DESCRIPTION:Nils Bartel\, AG Pappalardi\n\nOut-of-time-order correlators u nder permutation dynamics (midterm talk)\n\n\n\nContact Person: Sagar Ramc handani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Patrick Geraghty DTSTART;TZID=Europe/Berlin:20260513T100000 DTEND;TZID=Europe/Berlin:20260513T113000 DTSTAMP:20260527T090434Z UID:0000002365@events.thp.uni-koeln.de DESCRIPTION:Patrick Geraghty\, AG Rizzi\n\nFate of a Fractional Chern Insu lator under Nonlocal Interactions in Synthetic Dimensions\n\nSynthetic dim ensions provide a powerful route to engineer topological lattice models in ultracold atomic systems\, but they contain intrinsic nonlocal interactio ns along the synthetic direction. We investigate an extended Harper-Hofsta dter model subject to infinite-range column interactions that mimic this s ynthetic nonlocality. By tuning this interaction strength\, we demonstrate an adiabatic evolution from a Laughlin-type bosonic fractional Chern insu lator to a charge-ordered Tao-Thouless-like state without closing the many -body gap. Along this path\, the many-body Chern number and the topologica l entanglement entropy remain unchanged\, despite a pronounced restructuri ng of the entanglement spectrum and the loss of robustness against local p erturbations. This adiabatic connectivity establishes a controlled bridge between topologically ordered and effect- ively one-dimensional charge-ord ered regimes\, opening potential new avenues for state preparation. Our re sults also show that conventional topological markers may fail to diagnose the breakdown of locality-protected topological order in synthetic dimens ions\, and identify nonlocal interactions as a powerful knob to coherently interpolate between distinct many-body regimes.\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Finn Eckstein DTSTART;TZID=Europe/Berlin:20260520T100000 DTEND;TZID=Europe/Berlin:20260520T113000 DTSTAMP:20260527T090434Z UID:0000002370@events.thp.uni-koeln.de DESCRIPTION:Finn Eckstein\, AG Trebst\n\nLearning transitions of topologic al surface codes\n\n\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Hannah Dürschmidt DTSTART;TZID=Europe/Berlin:20260603T100000 DTEND;TZID=Europe/Berlin:20260603T113000 DTSTAMP:20260527T090434Z UID:0000002372@events.thp.uni-koeln.de DESCRIPTION:Hannah Dürschmidt\, AG Rosch\n\nInterplay of Topological and Charge Density Wave Orders of Bosons (midterm talk)\n\n\n\nContact Person: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Felix Spitzlay DTSTART;TZID=Europe/Berlin:20260610T100000 DTEND;TZID=Europe/Berlin:20260610T113000 DTSTAMP:20260527T090434Z UID:0000002376@events.thp.uni-koeln.de DESCRIPTION:Felix Spitzlay\, AG Rosch\n\nTo be announced\n\n\n\nContact Pe rson: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Rami Al-Tawili DTSTART;TZID=Europe/Berlin:20260617T100000 DTEND;TZID=Europe/Berlin:20260617T113000 DTSTAMP:20260527T090434Z UID:0000002409@events.thp.uni-koeln.de DESCRIPTION:Rami Al-Tawili\, AG Kugler\n\nFermi-liquid resistivity of Sr2R uO4 (midterm talk)\n\n\n\nContact Person: Fabian Kugler LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Mousa Kandah DTSTART;TZID=Europe/Berlin:20260708T100000 DTEND;TZID=Europe/Berlin:20260708T113000 DTSTAMP:20260527T090434Z UID:0000002369@events.thp.uni-koeln.de DESCRIPTION:Mousa Kandah\, AG Trebst\n\nTo be announced\n\n\n\nContact Per son: Sagar Ramchandani LOCATION:0.03 END:VEVENT BEGIN:VEVENT SUMMARY:CMTgroup | Rohit Kantipudi DTSTART;TZID=Europe/Berlin:20260715T100000 DTEND;TZID=Europe/Berlin:20260715T113000 DTSTAMP:20260527T090434Z UID:0000002382@events.thp.uni-koeln.de DESCRIPTION:Rohit Kantipudi\, AG Diehl\n\nTo be announced\n\n\n\nContact P erson: Sagar Ramchandani LOCATION:0.03 END:VEVENT END:VCALENDAR