期刊
CHEMICAL PHYSICS
卷 322, 期 1-2, 页码 187-192出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chemphys.2005.08.007
关键词
Stochastic description; open systems; strong dissipation; master equation
The Caldeira-Leggett model is studied in the stochastic description. The formal solution for the random density matrix of the system as well as its average is developed and a natural explanation of the Markovian approximation is given. It is shown that the system in strong dissipation moves more like a free Brownian particle, perturbed by the potential of the system. This observation allows us to successfully derive the corresponding master equation. (c) 2005 Elsevier B.V. All rights reserved.
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