Work

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

Year: 2026

Type: preprint

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.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2610.06417

Authors: Holst, Daniel, Potts, Patrick, Samuelsson, Peter

Institutions: Lund University, NanoLund, University of Basel, Swiss Nanoscience Institute

Language: English

Topic: Strong Light-Matter Interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Vetenskapsrådet, Wallenberg Centre for Molecular and Translational Medicine, Wallenberg Center for Quantum Technology, Chalmers University of Technology

Awards: Quantum thermodynamics in nanoscale systems - fluctuations, measurement and feedback, Fluctuations, Sensing, and Information in Open Quantum Systems

OpenAlex ID: W7220667404

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