In this work, we study the photon blockade effect based on the anisotropic quantum Rabi model with biased term. Different from the standard quantum Rabi model, such generalized quantum Rabi model allows its rotating and counter-rotating terms to have two different coupling constants and has a biased term. The photon blockade effect is discussed for such model in detail. The results show that the biased and anisotropic parameters play different roles in photon blockade effect. The symmetry of the Hamiltonian system is different when we choose different biased parameters. Consequently, the behavior is modified by varying biased parameters. The 𝒵 2 ${\mathscr{Z}}_{2}$ symmetry is preserved by varying anisotropic parameters, and the photon statistic behavior is similar for different anisotropic parameters.

中文翻译：

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带偏置项的各向异性量子 Rabi 模型中的光子阻塞

在这项工作中，我们研究了基于带偏置项的各向异性量子 Rabi 模型的光子阻塞效应。与标准量子Rabi模型不同的是，这种广义量子Rabi模型允许其旋转项和反向旋转项具有两个不同的耦合常数，并具有偏置项。详细讨论了这种模型的光子阻塞效应。结果表明，偏置参数和各向异性参数在光子阻挡效应中起不同的作用。当我们选择不同的偏置参数时，哈密顿系统的对称性是不同的。因此，通过改变有偏差的参数来修改行为。𝒵 2 ${\mathscr{Z}}_{2}$ 对称性通过不同的各向异性参数得以保持，并且对于不同的各向异性参数，光子统计行为是相似的。