Comment on `Parameter-dependent unitary transformation approach for quantum Rabi model'

Abstract

We discuss the elementary errors in D.G. Zhang's [New. J. Phys. 23, 093014 (2021)] 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.

5 pages, 1 figure, submitted to New. J. Phys. October 14, 2021

References in corpus (6)

• Generalized rotating-wave approximation for arbitrarily large coupling
• The quantum Rabi model: solution and dynamics
• Analytical method of spectra calculations in the Bargmann representation
• Note on the Analytical Solution of the Rabi Model
• Continued Fractions and the Rabi Model
• Parameter-dependent unitary transformation approach for quantum Rabi model