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arXiv · 1004.3359

Stochastic Master Equations in Thermal Environment

S Attal·C Pellegrini
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Abstract

We derive the stochastic master equations which describe the evolution of open quantum systems in contact with a heat bath and undergoing indirect measurements. These equations are obtained as a limit of a quantum repeated measurement model where we consider a small system in contact with an infinite chain at positive temperature. At zero temperature it is well-known that one obtains stochastic differential equations of jump-diffusion type. At strictly positive temperature, we show that only pure diffusion type equations are relevant.

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S Attal, C Pellegrini. 2010-04-20. Stochastic Master Equations in Thermal Environment. https://arxiv.org/abs/1004.3359

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