Lindblad equation for the quantum Rabi model in the deep strong coupling regime

Abstract:We derive a quantum master equation in Lindblad form for the open quantum Rabi model in the perturbative deep strong coupling regime, where the spectrum is close to degenerate and harmonic. The Lindblad form is obtained by combining secular and singular-coupling approximations, working in a Schrieffer-Wolff transformed frame. We benchmark our equation against a Bloch-Redfield one, analyzing the time-evolution and steady state properties of several observables and find excellent agreement. Analytical results are obtained in limiting cases.

Quantum Physics (quant-ph); Mesoscale and Nanoscale Physics (cond-mat.mes-hall)

arXiv:2610.06417 [quant-ph]

(or arXiv:2610.06417v1 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2610.06417 Focus to learn more arXiv-issued DOI via DataCite (pending registration)

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