Superradiant Switching, Quantum Hysteresis, and Oscillations in a Generalized Dicke Model

Abstract

We demonstrate quantum signatures of deterministic nonlinear dynamics in the transition to superradiance of a generalized open Dicke model with different coupling strengths for the co- and counter-rotating light-matter interaction terms. A first-order phase transition to coexisting normal and superradiant phases is observed, corresponding with the emergence of switching dynamics between these two phases, driven by quantum fluctuations. We show that this phase coexistence gives rise to a hysteresis loop also for the quantum mechanical system. Additionally, a transition to a superradiant oscillatory phase can be observed clearly in quantum simulations.

arXiv comment6 pages main, 5 figures, 3 pages supplemental

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• Entangled time-crystal phase in an open quantum light-matter system
• Collective dynamics of the unbalanced three-level Dicke model
• Multicritical dissipative phase transitions in the anisotropic open quantum Rabi model
• Condensate formation in a dark state of a driven atom-cavity system
• Quantum Fluctuation Dynamics of Dispersive Superradiant Pulses in a Hybrid Light-Matter System
• Self-trapping phenomenon, multistability and chaos in open anisotropic Dicke dimer
• Semiclassical bifurcations and quantum trajectories: a case study of the open Bose-Hubbard dimer
• Optomechanical self-organization in a mesoscopic atom array
• Impact of quantum noise on phase transitions in an atom-cavity system with limit cycles
• Dynamical phases of a BEC in a bad optical cavity at optomechanical resonance
• Genuine Quantum effects in Dicke-type Models at large atom numbers
• Transient and steady-state chaos in dissipative quantum systems
• Dissipative chaos and steady state of open Tavis-Cummings dimer
• Lasing and counter-lasing phase transitions in a cavity QED system
• Experimental observation of multimode quantum phase transitions in a superconducting Bose-Hubbard simulator