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题名: Stochastic simulation of quantum dissipative dynamics
作者: Zhou, Y;  Yan, Y;  Shao, J
刊名: EUROPHYSICS LETTERS
发表日期: 2005-11-01
DOI: 10.1209/epl/i2005-10262-4
卷: 72, 期:3, 页:334-340
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
英文摘要: As a system can be separated from its heat bath via a decoupling scheme based on the Hubbard-Stratonovich transformation, the quantum dissipative dynamics is exactly described by the average of the random system moving in the stochastic field induced by the bath. As a test of this stochastic formalism, a direct numerical implementation is employed to simulate the spontaneous decay of a two-state atom. In contrast, the validity of a deterministic algorithm based on the stochastic scheme is investigated. Moreover, a mixed random-deterministic approach is established and its efficiency is exemplified by studying the exact dynamics for the spin-boson model at zero temperature.
关键词[WOS]: 2-STATE SYSTEM ;  EQUATIONS ;  FIELDS
语种: 英语
WOS记录号: WOS:000233556300002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139788
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China

Recommended Citation:
Zhou, Y,Yan, Y,Shao, J. Stochastic simulation of quantum dissipative dynamics[J]. EUROPHYSICS LETTERS,2005,72(3):334-340.
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