Quantum thermalization and thermal entanglement in the open quantum Rabi model
arXiv:2205.02676 · doi:10.1002/andp.202200502
Abstract
We study quantum thermalization and thermal entanglement in the open quantum Rabi model (QRM), in which a two-level system and a single-mode bosonic field are coupled to either two individual heat baths or a common heat bath. By treating the QRM as an effective multilevel system and deriving global quantum master equations in the eigenstate representation of the QRM, we study the physical conditions for quantum thermalization of the open QRM. It is found that, in the individual heat-bath case, the QRM can only be thermalized when either the two heat baths have the same temperature or the QRM is only coupled to one of the two baths. In the common heat-bath case, differently, the QRM can always be thermalized. We also study thermal entanglement of the QRM in both the resonant- and non-resonant coupling cases. The logarithmic negativity for the thermal state of the QRM is obtained in a wide parameter space, ranging from the low- to high-temperature limits, and from the weak- to deep-strong-coupling regimes. This work paves the way towards the study of quantum effects in nonequilibrium ultrastrongly-coupled light-matter systems.
arXiv comment10 pages, 7 figures
References in corpus (47)
- Circuit Quantum Electrodynamics
- Hybrid quantum circuits: Superconducting circuits interacting with other quantum systems
- Ultrastrong coupling between light and matter
- Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime
- Ultrastrong coupling regimes of light-matter interaction
- On the Integrability of the Rabi Model
- Natural Thermal and Magnetic Entanglement in 1D Heisenberg 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
- Entanglement in the Quantum Heisenberg XY model
- Deep Strong Coupling Regime of the Jaynes-Cummings model
- Ultrastrong coupling of a single artificial atom to an electromagnetic continuum in the nonperturbative regime
- Creation of Entanglement by Interaction with a Common Heat Bath
- Ultra-Strong Light-Matter Coupling Regime with Polariton Dots
- On the Local and Global Approaches to Quantum Transport and Violation of the Second-law of Thermodynamics
- Exact solvability of the quantum Rabi models within Bogoliubov operators
- Markovian Master Equations: A Critical Study
- Reconciliation of quantum local master equations with thermodynamics
- Modeling heat transport through completely positive maps
- Enhanced the thermal Entanglement in Anisotropy XYZ Heisenberg Chain
- The quantum Rabi model: solution and dynamics
- Strong Coupling of a Quantum Oscillator to a Flux Qubit at its Symmetry Point
- Exact Master Equation and Quantum Decoherence of Two Coupled Harmonic Oscillators in a General Environment
- Thermal entanglement of spins in a nonuniform magnetic field
- Non-additive dissipation in open quantum networks out of equilibrium
- Entangling two unequal atoms through a common bath
- Steady-state coherences by composite system-bath interactions
- Thermal state entanglement in harmonic lattices
- Entanglement and quantum superposition induced by a single photon
- Ground-state phase diagram of the quantum Rabi model
- Photon emission via vacuum-dressed intermediate states under ultrastrong coupling
- Steady-state entanglement and coherence of the coupled qubit system in equilibrium and nonequilibrium environments
- Steady quantum coherence in non-equilibrium environment
- Generation and propagation of entanglement in driven coupled-qubit systems
- Creation and protection of entanglement in systems out of thermal equilibrium
- Dissipation and entanglement dynamics for two interacting qubits coupled to independent reservoirs
- Multifunctional quantum thermal device utilizing three qubits
- Quantum effects in thermal conduction: Nonequilibrium quantum discord and entanglement
- Negative differential thermal conductance and heat amplification in a nonequilibrium triangle-coupled spin-boson system at strong coupling
- Quantum thermalization of two coupled two-level systems in eigenstate and bare-state representations
- Characterizing cryogenic amplifiers with a matched temperature-variable noise source
- One-photon Solutions to Multiqubit Multimode quantum Rabi model
- Pushing the limits of the reaction-coordinate mapping
- Quantum Simulation of Noncausal Kinematic Transformations
- Phase-kicked control of counter-rotating interactions in the quantum Rabi model
- Quantum thermalization and vanishing thermal entanglement in the open Jaynes-Cummings model
- Maximization of thermal entanglement of arbitrarily interacting two qubits