# Comment on "Integrability of the Rabi model"

@article{Moroz2012CommentO, title={Comment on "Integrability of the Rabi model"}, author={Alexander Moroz}, journal={arXiv: Quantum Physics}, year={2012} }

In his recent letter, Braak suggested that a regular spectrum of the Rabi model was given by the zeros of a transcendental function $G_\pm(x)$ (cf Eqs. (3)-(5) of Ref. [1]) and highlighted the role of the discrete $\mathbb{Z}_2$-symmetry, or parity, in determining $G_\pm(x)$. We show here to the contrary that one can define a transcendental function $F_0(x)$ and obtain the regular spectrum of the Rabi model as the zeros of $F_0(x)$ (see Fig. 1) without ever making use of the underlying $\mathbb… CONTINUE READING

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