Quantum thermalization with couplings
文献类型：期刊论文
| 作者 | Dong, H.; Yang, S.; Liu, X. F.; Sun, C. P. ; Sun, CP , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
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| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2007 |
| 卷号 | 76期号:4页码:- |
| 关键词 | Statistical-mechanics |
| ISSN号 | 1050-2947 |
| 英文摘要 | We present an exactly solvable model to study the role of the system-bath coupling for the generalized canonical thermalization, which reduces almost all the pure states of the "universe" (formed by a system S plus its surrounding heat bath B) to a canonical equilibrium state of S. It is found that, for the overwhelming majority of the "universe" states (they are entangled at least), the diagonal canonical typicality remains robust with respect to finite interactions between S and B. Particularly, a decoherence mechanism is utilized here to account for the vanishing of the off-diagonal elements of the reduced density matrix of S. The nonvanishing off-diagonal elements due to the finite size of the bath and the stronger system-bath interaction might offer more to quantum thermalization. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000250619700218 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5645]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Sun, CP , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, H.,Yang, S.,Liu, X. F.,et al. Quantum thermalization with couplings[J]. PHYSICAL REVIEW A,2007,76(4):-. |
| APA | Dong, H.,Yang, S.,Liu, X. F.,Sun, C. P.,&Sun, CP , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.(2007).Quantum thermalization with couplings.PHYSICAL REVIEW A,76(4),-. |
| MLA | Dong, H.,et al."Quantum thermalization with couplings".PHYSICAL REVIEW A 76.4(2007):-. |
入库方式： OAI收割
来源：理论物理研究所
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