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Dissipaton equation of motion theory versus Fokker{Planck quantum master equation
yanyj
Author NameAffiliationE-mail
yanyj Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, Anhui 230026, China yanyj@ustc.edu.cn 
Abstract:
The quest of exact and nonperturbative methods on quantum dissipation with nonlinear coupling environments remains in general a great challenge. In this paper we present a comprehensive account on two approaches to the entangled system{and{environment dynamics, in the presence of linear{plus{quadratic coupling bath. One is the dissipaton{equation{of{motion (DEOM) theory that has been extended recently to treat the nonlinear coupling environment. Another is the extended Fokker{Planck quantum master equation (FP{QME) approach that will be constructed in this work, based on its DEOM correspondence. We closely compare these two approaches, with the focus on the underlying quasi{particle picture, physical implications and implementations.
Key words:  quadratic couping bath, dissipaton equation of motion, Fokker--Planck quantum master equation, quantum dissipation theory
FundProject:
Dissipaton equation of motion theory versus Fokker{Planck quantum master equation
严以京
摘要:
The quest of exact and nonperturbative methods on quantum dissipation with nonlinear coupling environments remains in general a great challenge. In this paper we present a comprehensive account on two approaches to the entangled system{and{environment dynamics, in the presence of linear{plus{quadratic coupling bath. One is the dissipaton{equation{of{motion (DEOM) theory that has been extended recently to treat the nonlinear coupling environment. Another is the extended Fokker{Planck quantum master equation (FP{QME) approach that will be constructed in this work, based on its DEOM correspondence. We closely compare these two approaches, with the focus on the underlying quasi{particle picture, physical implications and implementations.
关键词:  quadratic couping bath, dissipaton equation of motion, Fokker--Planck quantum master equation, quantum dissipation theory
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