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In this talk,‭ ‬the low-energy quantum transport properties of the Coulomb-Majorana junction‭ ‬will be discussed,‭ ‬where several helical nanowires are coupled to a joint mesoscopic superconductor with finite charging energy.‭ ‬By virtue of the proximity effect,‭ ‬Majorana bound states are formed near the ends of the superconducting wire parts,‭ ‬which are coupled together by charging effects.‭ For sufficiently weak but finite charging energy,‭ ‬this system generically approaches an isotropic SO(M‭) ‬Kondo fixed point with non-Fermi liquid behavior observable in quantum transport observables such as the temperature-dependent conductance tensor or the fluctuating current noise correlator.‭ ‬The latter quantities follow from the Keldysh formulation of an effective phase action approach.‭

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Prof. Dr. Reinhold Egger , Heinrich-Heine Universität Düsseldorf
Seminarraum Theoretische Physik
Contact: not specified