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Quantum Signatures in Quench from Chaos to Superradiance
Sayak Ray1,2, Amichay Vardi1, Doron Cohen3
1Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
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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