Anisotropic Rabi model
Anisotropic Rabi model
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各向异性拉比模型
DOI：
10.1103/physrevx.4.021046
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发表时间：
2014-06-11
影响因子：
12.5
通讯作者：
Fan, Heng
中科院分区：
文献类型：
--
作者：
Xie, Qiong-Tao;Cui, Shuai;Fan, Heng
我们将各向异性拉比模型定义为自旋玻色子拉比模型的推广：哈密顿系统破坏宇称对称；旋转和反旋转相互作用由两个不同的耦合常数控制；另一个参数引入了反向旋转项中的相位因子。得到了广义模型的准确能谱和特征态。该解是作为最近提出的模型各向同性极限的一种方法的阐述而得到的。通过这种方式，我们提供了在不同物理领域中具有直接相关性的级联模型的长期寻求的解决方案，包括(i)量子光学，单模交叉电场和磁场中的两能级原子；（ii）固体物理，具有Rashba和Dresselhaus自旋轨道耦合的半导体中的电子；介观物理，约瑟夫森结通量-量子位量子电路。
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.