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1 ICJ - Institut Camille Jordan Villeurbanne

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.

es pt

keyword : retrun to equilibrium

keyword : Quantum trajectories quantum thermal bath retrun to equilibrium.





Autor: Stéphane Attal - Clement Pellegrini

Fuente: https://hal.archives-ouvertes.fr/



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