Entanglement dynamics of the ultrastrong-coupling three-qubit Dicke model

2015/12/20 by Lijun Mao, Yanxia Liu, Yunbo Zhang
Computer Science · Physics and Astronomy · #Adiabatic process #Coupling (piping) #Physics #Population #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum electrodynamics #Quantum entanglement #Quantum mechanics #Qubit #quant-ph

paper · pdf · doi:10.1103/physreva.93.052305

7 pages, 4 figures

arxiv created 2015/12/20 · openalex publication_date 2016/05/03 · arxiv updated 2016/05/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We give an analytical description of the dynamics of the three-qubit Dicke model using the adiabatic approximation in the parameter regime where the qubit transition frequencies are far off-resonance with the field frequency and the interaction strengths reach the ultrastrong-coupling regimes. Qualitative differences arise upon comparison to single- and two-qubit systems. Simple analytic formulas show that three revival sequences produce a three-frequency beat note in the time evolution of the population. We find an explicit way to estimate the dynamics for qubit-field and qubit-qubit entanglement inside the three-qubit system in the ultrastrong-coupling regime, and the resistance to sudden death proves that the entanglement in the Greenberger-Horne-Zeilinger state is more robust than that in the W state.

Citations

• Exact analysis of the spectral properties of the anisotropic two-bosons Rabi model
• Experimental loophole-free violation of a Bell inequality using entangled electron spins separated by 1.3 km
• Teleporting an unknown quantum state via dual classical and Einstein-Podolsky-Rosen channels
• Anisotropic Rabi model
• Controllability and Universal Three-qubit Quantum Computation with Trapped Electron States
• Entanglement of Formation of an Arbitrary State of Two Qubits
• Efficient construction of three- and four-qubit quantum gates by global entangling gates
• Ultrastrong coupling regime of cavity QED with phase-biased flux qubits
• Propagating phonons coupled to an artificial atom
• Concise analytic solutions to the quantum Rabi model with two arbitrary qubits
• On the Process of Space Quantization
• Exact solvability, non-integrability, and genuine multipartite entanglement dynamics of the Dicke model
• Sudden Birth versus Sudden Death of Entanglement in Multipartite Systems
• Universal state inversion and concurrence in arbitrary dimensions
• Observation of the Bloch-Siegert Shift in a Qubit-Oscillator System in the Ultrastrong Coupling Regime
• Digital Quantum Rabi and Dicke Models in Superconducting Circuits
• Realization of the Quantum Toffoli Gate with Trapped Ions
• Entangling polaritons via dynamical Casimir effect in circuit quantum electrodynamics
• Quantum entanglement