Dissipative Dicke time crystals: an atoms' point of view
arXiv:2310.00046 · doi:10.1103/PhysRevA.110.L010202
Abstract
We develop and study an atom-only description of the Dicke model with time-periodic couplings between atoms and a dissipative cavity mode. The cavity mode is eliminated giving rise to effective atom-atom interactions and dissipation. We use this effective description to analyze the dynamics of the atoms that undergo a transition to a dynamical superradiant phase with macroscopic coherences in the atomic medium and the light field. Using Floquet theory in combination with the atom-only description we provide a precise determination of the phase boundaries and of the dynamical response of the atoms. From this we can predict the existence of dissipative time crystals that show a subharmonic response with respect to the driving frequency. We show that the atom-only theory can describe the relaxation into such a dissipative time crystal and that the damping rate can be understood in terms of a cooling mechanism.
13 pages with Supplemental Material and 6 figures. For more information and the latest version see https://www.physik.uni-kl.de/eggert/papers/
References in corpus (20)
- Cold atoms in cavity-generated dynamical optical potentials
- Cavity QED with Quantum Gases: New Paradigms in Many-Body Physics
- Realization of an anomalous Floquet topological system with ultracold atoms
- Long-range interacting quantum systems
- Observation of a dissipative time crystal
- Discrete Time-Crystalline Order in Cavity and Circuit QED Systems
- Keldysh approach for non-equilibrium phase transitions in quantum optics: beyond the Dicke model in optical cavities
- Observation of a continuous time crystal
- Tailoring quantum gases by Floquet engineering
- Collective emission of matter-wave jets from driven Bose-Einstein condensates
- Atom-only descriptions of the driven-dissipative Dicke model
- Realization of a periodically driven open three-level Dicke model
- Mode softening in time-crystalline transitions of open quantum systems
- Entangled time-crystal phase in an open quantum light-matter system
- Non-equilibrium Floquet steady states of time-periodic driven Luttinger liquids
- Atom-only theories for U(1) symmetric cavity-QED models
- Cavity-based reservoir engineering for Floquet-engineered superconducting circuits
- Resonant light enhances phase coherence in a cavity QED simulator of fermionic superfluidity
- Nonequilibrium phases of ultracold bosons with cavity-induced dynamic gauge fields
- Bridging closed and dissipative discrete time crystals in spin systems with infinite-range interactions
Cited by in corpus (7)
- Dynamical phases of a BEC in a bad optical cavity at optomechanical resonance
- Impact of quantum noise on phase transitions in an atom-cavity system with limit cycles
- Understanding Floquet Resonances in Ultracold Gas Scattering
- Master Equation for a Quantum Gas of Polarizable Particles in Cavities
- Quantum heat transport in nonequilibrium anisotropic Dicke model
- Chiral Instabilities in Driven-Dissipative Quantum Liquids
- Controlled bit-flip of period-doubling and discrete time crystalline states in open systems