Superradiant Phase Transition in the Strong Coupling Regime
arXiv:2208.12524 · doi:10.1103/PhysRevA.107.063713
Abstract
The Dicke model can exhibit quantum phase transition between the normal and the superradiant phases when the strength of the light-matter coupling exceeds the ultrastrong coupling regime. However, it is challenging to observe this phase transition in practical systems due to limited coupling strength or finite two-photon terms. Here we show that by applying a periodic modulation to the frequency of the two-level systems in a standard Dicke model in the strong coupling regime, an anisotropic Dicke model with tunable rotating and counter-rotating terms in the ultrastrong coupling regime can be achieved. We calculate the ground state and the excitation spectrum of this model in terms of the modulation parameters. Our result shows that the superradiant phases can be observed in cavity- or circuit-quantum electrodynamics systems with strong coupling.
arXiv comment5 pages, 4 figures
References in corpus (30)
- Cavity quantum electrodynamics for superconducting electrical circuits: an architecture for quantum computation
- The Dicke Quantum Phase Transition with a Superfluid Gas in an Optical Cavity
- Superconducting Qubits: Current State of Play
- Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime
- Cold atoms in cavity-generated dynamical optical potentials
- Chaos and the Quantum Phase Transition in the Dicke Model
- Observation of the Bloch-Siegert Shift in a Qubit-Oscillator System in the Ultrastrong Coupling Regime
- Superconducting qubit-oscillator circuit beyond the ultrastrong-coupling regime
- Proposed realization of the Dicke-model quantum phase transition in an optical cavity QED system
- Quantum Chaos Triggered by Precursors of a Quantum Phase Transition: The Dicke Model
- Ultrastrong coupling of a single artificial atom to an electromagnetic continuum in the nonperturbative regime
- Exploring Symmetry Breaking at the Dicke Quantum Phase Transition
- The Dicke model phase transition in the quantum motion of a Bose-Einstein condensate in an optical cavity
- Dynamical phase transition in the open Dicke model
- Dressed Collective Qubit States and the Tavis-Cummings Model in Circuit QED
- Is there a no-go theorem for superradiant quantum phase transitions in cavity and circuit QED ?
- Dynamics of Nonequilibrium Dicke Models
- Exploring dynamical phase transitions with cold atoms in an optical cavity
- Implementation of a Quantum Metamaterial
- Dissipation-induced anomalous multicritical phenomena
- Multi-mode ultra-strong coupling in circuit quantum electrodynamics
- Dicke model simulation via cavity-assisted Raman transitions
- Cavity-mediated near-critical dissipative dynamics of a driven condensate
- Dynamical phase transitions in dissipative quantum dynamics with quantum optical realization
- Manipulating counter-rotating interactions in the quantum Rabi model via qubit frequency modulation
- Dynamic sensitivity of phton-dressed atomic ensenmble with quantum criticality
- Characterizing the dynamical phase diagram of the Dicke model via classical and quantum probes
- Superradiance phase transition in the presence of parameter fluctuations
- Cavity-assisted Dynamical Quantum Phase Transition at Bifurcation Points
- Robust Preparation of Many-body Ground States in Jaynes-Cummings Lattices