Séminaire exceptionnel du LPTMS: Ines de Vega


14:30 - 15:30

LPTMS, salle 201, 2ème étage, Bât 100, Campus d'Orsay
15 Rue Georges Clemenceau, Orsay, 91405

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Open quantum systems: hierarchical structures, chain mappings and thermofield dynamics

Ines de Vega, LMU Munich

Open quantum systems (OQS) cannot always be described with the Markov approximation, which requires a large separation of system and environment time scales. In this talk I will give an overview of some recent advances to tackle the dynamics of an OQS beyond the Markov approximation, with special emphasis in hierarchy-based [1,2] and chain mapping-based [3] approaches. In the latter context, I will discuss the use of a thermofield transformation to describe thermal environments [4].
[1] Y. Tanimura. PRA 41, 6676–6687 (1990)
[2] I. de Vega, J. Phys. A: Math. Theor. 48, 145202 (2015)
[3] A. W. Chin, J. Prior, S. F. Huelga, and M. B. Plenio, Phys. Rev. Lett. 107, 160601, 1102.1483 (2011).
[4] I. de Vega and M.C. Bañuls, arXiv:1504.07228
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