Dynamics of Dissipative Quantum Systems--from Path Integrals to Master Equations

Details Dynamics of Dissipative Quantum Systems--from Path Integrals to Master Equations Dynamics of Dissipative Quantum Systems--from Path Integrals to Master Equations

2003-09-11

arxiv.org/abs/cond-mat/0309284v1

Lecture Notes in Physics 622, F. Benatti, R. Floreanini (eds.)(Springer, New York, 2003), 165

Physics

Condensed Matter

Statistical Mechanics

10 pages, 1 figure

Scientific paper

The path integral approach offers not only an exact expression for the non- equilibrium dynamics of dissipative quantum systems, but is also a convenient starting point for perturbative treatments. An alternative way to explore the influence of friction in the quantum realm is based on master equations which require, however, in one or the other aspect approximations. Here it is discussed under which conditions and limitations Markovian master equations can be derived from exact path integrals thus providing a firm basis for their applicability.

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