Controlling the superradiant phase transition in the quantum Rabi model
arXiv:2407.20689 · doi:10.1103/PhysRevA.111.023708
Abstract
In the ultrastrong-coupling regime, the quantum Rabi model can exhibit quantum phase transition (QPT) when the ratio of the qubit transition frequency to the frequency of the cavity field approaches infinity. However, it is challenging to control the QPT in few-body systems because of the limited coupling strength and the A^2 term. Here, we propose a practical scheme to manipulate the QPT of the quantum Rabi model in the strong-coupling regime. By applying a periodic frequency modulation to the two-level system in a quantum Rabi model in the strong-coupling regime, an anisotropic quantum Rabi model with ultrastrong and tunable coupling strengths for rotating and counterrotating terms is obtained. The ground state and excitation energy of this model, in terms of the modulation parameters, are studied. We find that the QPT of the quantum Rabi model can be observed in the strong-coupling regime and externally controlled by the modulation.
11 pages, 10 figures
References in corpus (30)
- Ultrastrong coupling regimes of light-matter interaction
- Chaos and the Quantum Phase Transition in the Dicke Model
- Superconducting qubit-oscillator circuit beyond the ultrastrong-coupling regime
- Quantum Chaos Triggered by Precursors of a Quantum Phase Transition: The Dicke Model
- Quantum Phase Transition and Universal Dynamics in the Rabi model
- Is there a no-go theorem for superradiant quantum phase transitions in cavity and circuit QED ?
- Vacuum Rabi oscillations in a macroscopic superconducting qubit LC oscillator system
- Superradiant Phase Transitions and the Standard Description of Circuit QED
- Superradiance transition in a system with a single qubit and a single oscillator
- Observation of a quantum phase transition in the quantum Rabi model with a single trapped ion
- Universal scaling and critical exponents of the anisotropic quantum Rabi model
- Quantum simulation of the quantum Rabi model in a trapped ion
- Dissipative Phase Transition in the Open Quantum Rabi Model
- Quantum Phase Transition in the Finite Jaynes-Cummings Lattice Systems
- Motional Averaging in a Superconducting Qubit
- Anisotropic Rabi model
- Probing the Dynamics of Superradiant Quantum Phase Transition in a Single Trapped-Ion
- Elimination of the A-square problem from cavity QED
- Dissipation-induced anomalous multicritical phenomena
- Quantum tricriticality of chiral-coherent phase in quantum Rabi triangle
- Observation of a superradiant phase transition with emergent cat states
- Understanding the quantum Rabi ring using analogies to quantum magnetism
- Quantum criticality in a generalized Dicke model
- Manipulating counter-rotating interactions in the quantum Rabi model via qubit frequency modulation
- Dynamic sensitivity of phton-dressed atomic ensenmble with quantum criticality
- Signatures of Dissipation Driven Quantum Phase Transition in Rabi Model
- Quantum phase transition of the Jaynes-Cummings model
- Multicritical dissipative phase transitions in the anisotropic open quantum Rabi model
- Superradiant Phase Transition in the Strong Coupling Regime
- Experimental observation of spontaneous symmetry breaking in a quantum phase transition