Dynamical phase transitions to optomechanical superradiance
arXiv:1811.10467 · doi:10.1103/PhysRevLett.123.053601
Abstract
We theoretically analyze superradiant emission of light from an ultracold gas of bosonic atoms confined in a bad cavity. A metastable dipolar transition of the atoms couples to the cavity field and is incoherently pumped, the mechanical effects of cavity-atom interactions tend to order the atoms in the periodic cavity potential. By means of a mean-field model we determine the conditions on the cavity parameters and pump rate that lead to the buildup of a stable macroscopic dipole emitting coherent light. We show that this occurs when the superradiant decay rate and the pump rate exceed threshold values of the order of the photon recoil energy. Above these thresholds superradiant emission is accompanied by the formation of stable matter-wave gratings that diffract the emitted photons. Outside of this regime, instead, the optomechanical coupling can give rise to dephasing or chaos, for which the emitted light is respectively incoherent or chaotic. These behaviors exhibit the features of a dynamical phase transitions and emerge from the interplay between global optomechanical interactions, quantum fluctuations, and noise.
arXiv comment8 pages, 6 figures
References in corpus (31)
- Quantum entanglement
- The Dicke Quantum Phase Transition with a Superfluid Gas in an Optical Cavity
- Statistical mechanics and dynamics of solvable models with long-range interactions
- Chaos and the Quantum Phase Transition in the Dicke Model
- The Dicke model phase transition in the quantum motion of a Bose-Einstein condensate in an optical cavity
- Prospects for a mHz-linewidth laser
- Boundary time crystals
- Discrete Time-Crystalline Order in Cavity and Circuit QED Systems
- Nonequilibrium Statistical Mechanics of Systems with Long-Range Interactions: Ubiquity of Core-Halo Distributions
- Steady-state superradiance with alkaline earth atoms
- Spinor self-ordering of a quantum gas in a cavity
- Formation of a spin texture in a quantum gas coupled to a cavity
- Cavity-Modified Collective Rayleigh Scattering of Two Atoms
- Bose-glass phases of ultracold atoms due to cavity backaction
- Emergent limit cycles and time crystal dynamics in an atom-cavity system
- Intensity fluctuations in steady state superradiance
- Interference and dynamics of light from a distance-controlled atom pair in an optical cavity
- Dissipation-induced instabilities of a spinor Bose-Einstein condensate inside an optical cavity
- Shattered Time: Can a Dissipative Time Crystal Survive Many-Body Correlations?
- Selfsynchronization and dissipation-induced threshold in collective atomic recoil lasing
- Chaotic dynamical ferromagnetic phase induced by non-equilibrium quantum fluctuations
- Lasing in the superradiant crossover regime
- Coherent single-atom superradiance
- Driven-Dissipative Quantum Dynamics in Ultra Long-lived Dipoles in an Optical Cavity
- Supercooling of Atoms in an Optical Resonator
- Optimised multi-ion cavity coupling
- Non-linear optics with two trapped atoms
- Semiclassical theory of synchronization-assisted cooling
- Quantum light by atomic arrays in optical resonators
- Theory of the crossover from lasing to steady state superradiance
- Fast phonon dynamics of a nanomechanical oscillator due to cooperative effects
Cited by in corpus (20)
- Rugged mHz-Linewidth Superradiant Laser Driven by a Hot Atomic Beam
- Hidden time-reversal symmetry, quantum detailed balance and exact solutions of driven-dissipative quantum systems
- A cavity-QED quantum simulator of dynamical phases of a BCS superconductor
- Subradiant-to-Subradiant Phase Transition in the Bad Cavity Laser
- Collective dynamics of inhomogeneously broadened emitters coupled to an optical cavity with narrow linewidth
- Enhancement of Quantum Sensing in a Cavity Optomechanical System around Quantum Critical Point
- Crafting the dynamical structure of synchronization by harnessing bosonic multilevel cavity QED
- Atomic Quantum Technologies for Quantum Matter and Fundamental Physics Applications
- Nonequilibrium transition between dissipative time crystals
- Quantum critical behavior of entanglement in lattice bosons with cavity-mediated long-range interactions
- Superradiant emission of a thermal atomic beam into an optical cavity
- Superradiant optomechanical phases of cold atomic gases in optical resonators
- Regular and bistable steady-state superradiant phases of an atomic beam traversing an optical cavity
- Stability and decay of subradiant patterns in a quantum gas with photon-mediated interactions
- Collective emission of an atomic beam into an off-resonant cavity mode
- Spin self-organization in an optical cavity facilitated by inhomogeneous broadening
- Dynamical phases of a BEC in a bad optical cavity at optomechanical resonance
- Enhanced phonon lifetimes with optically controlled single molecules
- Floquet Engineering of Non-Equilibrium Superradiance
- Robustness of the Floquet-assisted superradiant phase and possible laser operation