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arXiv · 2201.07669

Quantum signatures in quench from chaos to superradiance

Sayak Ray·Amichay Vardi·Doron Cohen
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Abstract

The driven-dissipative Dicke model features normal, superradiant, and lasing steady-states that may be regular or chaotic. We report quantum signatures of chaos in a quench protocol from the lasing states. Within the framework of a classical mean-field perspective, once quenched, the system relaxes either to the normal or to the superradiant state. Quench-from-chaos, unlike quench from a regular lasing state, exhibits erratic dependence on control parameters. In the quantum domain this sensitivity implies an effect that is similar to universal conductance fluctuations.

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Sayak Ray, Amichay Vardi, Doron Cohen. 2022-01-19. Quantum signatures in quench from chaos to superradiance. https://doi.org/10.1103/physrevlett.128.130604

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