Dynamical many-body phases of the parametrically driven, dissipative Dicke model

Abstract

The dissipative Dicke model exhibits a fascinating out-of-equilibrium many-body phase transition as a function of a coupling between a driven photonic cavity and numerous two-level atoms. We study the effect of a time-dependent parametric modulation of this coupling, and discover a rich phase diagram as a function of the modulation strength. We find that in addition to the established normal and super-radiant phases, a new phase with pulsed superradiance which we term dynamical normal phase appears when the system is parametrically driven. Employing different methods, we characterize the different phases and the transitions between them. Specific heed is paid to the role of dissipation in determining the phase boundaries. Our analysis paves the road for the experimental study of dynamically stabilized phases of interacting light and matter.

7 pages (including Supplemental Material), 6 figures, comments are welcome

References in corpus (7)

• Many-Body Physics with Ultracold Gases
• Quantum fluids of light
• Coupling Superconducting Qubits via a Cavity Bus
• The Magnus expansion and some of its applications
• Observation of Superfluidity of Polaritons in Semiconductor Microcavities
• Dynamical phase transition in the open Dicke model
• Bringing entanglement to the high temperature limit

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