Oksana Chelpanova

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In physics, we often encounter the problem of solving the dynamics of a system coupled to its environment. In the field of AMO (Atomic, Molecular, and Optical physics), such situations are often well described by the Lindblad master equation [1], which captures the dissipative dynamics of the system. The Hilbert space of these problems grows exponentially with system size, making exact numerical treatment generally intractable. However, in many practical cases, tracking all possible correlations is unnecessary, and a semiclassical description may be sufficient to capture the main features of the dynamics. In this talk, I will discuss one such method — the Truncated Wigner Approximation — and its application to driven dissipative systems [2]. I will show how this approach can be readily applied to problems such as correlated emission from atomic ensembles, driven-dissipative dynamics of Rydberg atoms, and more.

[1] Stefanini M., Ziolkowska A, Budker D., Poschinger U., Schmidt-Kaler F., Browaeys A., Imamoglu A., Chang D., & Jamir Marino. Is Lindblad for me? arXiv preprint arXiv:2506.22436 [2] Hosseinabadi, H., Chelpanova, O., & Marino, J. (2025). Making Truncated Wigner for dissipative spins ‘plain easy’. arXiv preprint arXiv:2503.17443.

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Johannes Gutenberg-Universität Mainz
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Contact: Karim Chahine