Effects of initial correlations on the dynamics of dissipative systems
文献类型：期刊论文
| 作者 | Pollak, Eli1; Shao, Jiushu2; Zhang, Dong Hui3,4 |
| 刊名 | physical review e
 |
| 出版日期 | 2008-02-01 |
| 卷号 | 77期号:2页码:021107-1-021107-9 |
| 产权排序 | 3;3 |
| 通讯作者 | eli pollak |
| 英文摘要 | the time correlation functions for a gaussian wave-packet preparation of the dissipative harmonic oscillator evolving from three initial conditions for the heat bath are calculated and compared with each other for ohmic heat baths. the three initial distributions for the bath are the factorized, partially factorized, and unfactorized distributions. explicit analytical formulas are derived and then used to study the effect of the three initial distributions on the subsequent dynamics. we find that the transient behavior does not depend sensitively on the initial condition as long as the initial gaussian wave function of the system is centered at the equilibrium point. differences become noticeable as the center of the wave packet is significantly shifted from the equilibrium point. these observations justify to some extent the prevalent use of factorized initial conditions for studying real time quantum dynamics in dissipative systems. the total energy in the system is also calculated for the three initial states and its relation to features in the decay is pointed out. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | physics, fluids & plasmas ; physics, mathematical |
| 研究领域[WOS] | physics |
| 关键词[WOS] | quantum brownian-motion ; damped harmonic-oscillator ; general environment ; integral approach ; master equation ; decoherence ; rates ; transition ; simulation ; derivation |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000253763700021 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/101337]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Weizmann Inst Sci, Dept Phys Chem, IL-76100 Rehovot, Israel 2.Beijing Normal Univ, Coll Chem, Beijing 100875, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Ctr Theoret & Computat Chem, Dalian 116023, Peoples R China 4.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pollak, Eli,Shao, Jiushu,Zhang, Dong Hui. Effects of initial correlations on the dynamics of dissipative systems[J]. physical review e,2008,77(2):021107-1-021107-9. |
| APA | Pollak, Eli,Shao, Jiushu,&Zhang, Dong Hui.(2008).Effects of initial correlations on the dynamics of dissipative systems.physical review e,77(2),021107-1-021107-9. |
| MLA | Pollak, Eli,et al."Effects of initial correlations on the dynamics of dissipative systems".physical review e 77.2(2008):021107-1-021107-9. |
入库方式： OAI收割
来源：大连化学物理研究所
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