Analytic solutions for generalized <inline-formula> <tex-math> <?CDATA ${\mathscr{P}}{\mathscr{T}}$?> </tex-math><mml:math><mml:mrow><mml:mi mathvariant='script'>P</mml:mi><mml:mi mathvariant='script'>T</mml:mi></mml:mrow></mml:math> <inline-graphic xmlns:xlink="https://www.w3.org/1999/xlink" xlink:href="cpb_28_11_114202_ieqn1.gif"/></inline-formula>-symmetric Rabi models<xref rid="cpb_28_11_114202_fn1" ref-type="fn">*</xref><fn id="cpb_28_11_114202_fn1"><label>*</label><p>Project supported in part by the National Natural Science Foundation of China (Grant No. 11874251), the Scientific Research Starting Foundation of Shaanxi Normal University, China, and the Scientific Research Plan Funded by the Education Department of Shaanxi Province, China (Grant No. 17JK0786).</p></fn>

Analytic solutions for generalized

-symmetric Rabi models**

Project supported in part by the National Natural Science Foundation of China (Grant No. 11874251), the Scientific Research Starting Foundation of Shaanxi Normal University, China, and the Scientific Research Plan Funded by the Education Department of Shaanxi Province, China (Grant No. 17JK0786).

Dong Yuanhao¹, Zhang Wen-Jing^{2, †}, Liu Jing¹, Xie Xiao-Tao^{1, ‡}

The real (solid line) and imaginary (dash line) parts of the instantaneous eigenvalues ε(z) with respect to z for different cases. (a) ω₀ = 2.0; ω = 1.0, λ = 0.4, and z ∈ [0.0,15.0]; (b) the parameters are the same to the former except for λ = 0.6. Panels (a) and (b) belong to the unbroken and broken PT symmetric phases, respectively.