Comment on ‘Parameter-dependent unitary transformation approach for quantum Rabi model’

We discuss the elementary errors in Zhang’s (2021 New J. Phys. 23 093014) claimed exact solution of the quantum Rabi model. The erroneous solution is seen to be nothing more than the combined solution of the simpler Jaynes–Cummings and anti-Jaynes–Cummings models obtained by neglecting terms in the...

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Bibliographic Details
Main Authors: Daniel Braak, Murray T Batchelor, Qing-Hu Chen
Format: Article
Language:English
Published: IOP Publishing 2022-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/ac6c44
Description
Summary:We discuss the elementary errors in Zhang’s (2021 New J. Phys. 23 093014) claimed exact solution of the quantum Rabi model. The erroneous solution is seen to be nothing more than the combined solution of the simpler Jaynes–Cummings and anti-Jaynes–Cummings models obtained by neglecting terms in the model Hamiltonian.
ISSN:1367-2630