Neural quantum states for emitter dynamics in waveguide QED
- URL: http://arxiv.org/abs/2508.08964v1
- Date: Tue, 12 Aug 2025 14:30:58 GMT
- Title: Neural quantum states for emitter dynamics in waveguide QED
- Authors: Tatiana Vovk, Anka Van de Walle, Hannes Pichler, Annabelle Bohrdt,
- Abstract summary: We introduce a novel numerical method to study the dynamics of open quantum systems by extending the time-dependent neural quantum state (t-NQS) framework to open quantum systems.<n>Our results demonstrate that the t-NQS approach is competitive with other numerical methods and highlight the potential of t-NQSs for studying open quantum many-body systems out of equilibrium.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Quantum emitters coupled to one-dimensional waveguides constitute a paradigmatic quantum-optical platform for exploring collective phenomena in open quantum many-body systems. For appropriately spaced emitters, they realize the Dicke model, whose characteristic permutation symmetry allows for efficient exact solutions featuring superradiance. When the emitters are arbitrarily spaced, however, this symmetry is lost and general analytical solutions are no longer available. In this work, we introduce a novel numerical method to study the dynamics of such systems by extending the time-dependent neural quantum state (t-NQS) framework to open quantum systems. We benchmark our approach across a range of waveguide QED settings and compare its performance with tensor-network calculations. Our results demonstrate that the t-NQS approach is competitive with other numerical methods and highlight the potential of t-NQSs for studying open quantum many-body systems out of equilibrium.
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