We employ a squeeze operator transformation approach to solve the anisotropic quantum Rabi model that includes a diamagnetic term. By carefully adjusting the amplitude of the diamagnetic term, we demonstrate that the anisotropic Rabi model with the A2 term can be exactly reduced to either a Jaynes-Cummings or an anti-Jaynes-Cummings model without requiring any approximations.
Cite
@article{arxiv.2501.17986,
title = {The anisotropic quantum Rabi model with diamagnetic term},
author = {Jorge A. Anaya-Contreras and Irán Ramos-Prieto and Arturo Zúñiga-Segundo and Héctor M. Moya Cessa},
journal= {arXiv preprint arXiv:2501.17986},
year = {2025}
}