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Title: Anisotropic Rabi model
Authors: Xie, Q.-T
Cui, S
Cao, J.-P
Amico, L 
Fan, H
Keywords: Anisotropy
Quantum optics
Coupling constants
Generalized models
Hamiltonian systems
Mesoscopic physics
Quantum physics
Spin-orbit couplings
Statistical physics
Issue Date: 2014
Citation: Xie, Q.-T, Cui, S, Cao, J.-P, Amico, L, Fan, H (2014). Anisotropic Rabi model. Physical Review X 4 (2) : 21046. ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: We define the anisotropic Rabi model as the generalization of the spin-boson Rabi model: The Hamiltonian system breaks the parity symmetry; the rotating and counterrotating interactions are governed by two different coupling constants; a further parameter introduces a phase factor in the counterrotating terms. The exact energy spectrum and eigenstates of the generalized model are worked out. The solution is obtained as an elaboration of a recently proposed method for the isotropic limit of the model. In this way, we provide a long-sought solution of a cascade of models with immediate relevance in different physical fields, including (i) quantum optics, a two-level atom in single-mode cross-electric and magnetic fields; (ii) solid-state physics, electrons in semiconductors with Rashba and Dresselhaus spin-orbit coupling; and (iii) mesoscopic physics, Josephson-junction flux-qubit quantum circuits.
Source Title: Physical Review X
ISSN: 21603308
DOI: 10.1103/PhysRevX.4.021046
Rights: Attribution 4.0 International
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