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Open Quantum Systems Decoherence

An analytic expression for the optical exciton transition rates in the polaron frame

arXiv
Authors: Dominic M Rouse, Erik M Gauger, Brendon W Lovett

Year

2021

Paper ID

61136

Status

Preprint

Abstract Read

~2 min

Abstract Words

118

Citations

0

Abstract

When an optical emitter is strongly coupled to a vibrational bath the polaron transformation is often used to permit an accurate second-order Redfield master equation. However, the optical transition rates in the polaron frame are not analytic and approximations typically need to be made which result in the loss of anything other than simple additive effects of the two baths. In this paper, we derive an intuitive analytic expression for the polaron frame optical transition rates by means of a finite mode truncation of the vibrational bath. Using this technique, calculations of the transition rates converge for only a few modes in the truncated spectral density, and capture non-additive effects such as population inversion of a two-level system.

Why This Paper Matters

  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
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  • When an optical emitter is strongly coupled to a vibrational bath the polaron transformation is often used to permit an accurate second-order Redfield master equation.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2109.14452 [2] arXiv https://arxiv.org/abs/2109.14452 [3] Publisher https://arxiv.org/abs/2109.14452

Local Citation Graph (Related-Paper Links)

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External citation index: OpenAlex citation signal • updated 2026-06-15 14:37:51

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