This article is cited in 7 papers

Memory effects and nonequilibrium correlations in the dynamics of open quantum systems

V. G. Morozov

Moscow Technological University, Moscow, Russia

Abstract: We propose a systematic approach to the dynamics of open quantum systems in the framework of Zubarev's nonequilibrium statistical operator method. The approach is based on the relation between ensemble means of the Hubbard operators and the matrix elements of the reduced statistical operator of an open quantum system. This key relation allows deriving master equations for open systems following a scheme conceptually identical to the scheme used to derive kinetic equations for distribution functions. The advantage of the proposed formalism is that some relevant dynamical correlations between an open system and its environment can be taken into account. To illustrate the method, we derive a non-Markovian master equation containing the contribution of nonequilibrium correlations associated with energy conservation.

Keywords: nonequilibrium statistical mechanics, nonequilibrium statistical operator method, open quantum system.

Received: 01.05.2017

DOI: 10.4213/tmf9394

 English version: Theoretical and Mathematical Physics, 2018, 194:1, 105–113

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