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QUANTUM DYNAMICS OF A DISSIPATIVE PARTICLE IN A CONSTANT FIELD - EXACT PATH-INTEGRAL APPROACH
LI, XQ; SU, ZB; GONG, FZ; LI, XQ , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
1994
发表期刊PHYSICAL REVIEW B
ISSN0163-1829
卷号49期号:23页码:16277-16282
摘要We show that the dynamics of a dissipative quantum particle in a constant electric field can be solved exactly by applying the Feynman-Vernon influence-functional theory. We derive the drift velocity and its autocorrelation function as well as the fluctuation-dissipation theorem. For such a simple linear dissipative system, it is interesting to find that the drift velocity always depends on the field linearly, and the fluctuation is not influenced by the field. We also find, for the Ohmic dissipation, a t-2 power law long-time tail for the drift-velocity autocorrelation function at zero temperature.
部门归属ACAD SINICA,INST APPL MATH,BEIJING 100080,PEOPLES R CHINA
关键词Double-well Systems Ohmic Dissipation Electric-field Finite Temperatures Brownian-motion 2-state System Diffusion Crystal Rates
学科领域Physics
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收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/11893
专题理论物理所SCI论文
通讯作者LI, XQ , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
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LI, XQ,SU, ZB,GONG, FZ,et al. QUANTUM DYNAMICS OF A DISSIPATIVE PARTICLE IN A CONSTANT FIELD - EXACT PATH-INTEGRAL APPROACH[J]. PHYSICAL REVIEW B,1994,49(23):16277-16282.
APA LI, XQ,SU, ZB,GONG, FZ,&LI, XQ , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA..(1994).QUANTUM DYNAMICS OF A DISSIPATIVE PARTICLE IN A CONSTANT FIELD - EXACT PATH-INTEGRAL APPROACH.PHYSICAL REVIEW B,49(23),16277-16282.
MLA LI, XQ,et al."QUANTUM DYNAMICS OF A DISSIPATIVE PARTICLE IN A CONSTANT FIELD - EXACT PATH-INTEGRAL APPROACH".PHYSICAL REVIEW B 49.23(1994):16277-16282.
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