Knowledge Management System of Institute of Theoretical Physics, CAS
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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| Quantum thermalization with couplings | |
| Source Publication | PHYSICAL REVIEW A
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| Keyword | Statistical-mechanics |
| Abstract | 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. |
| 2007 | |
| ISSN | 1050-2947 |
| Volume | 76Issue:4Pages:- |
| Subject Area | Physics |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/5645 |
| Collection | SCI期刊论文 |
| Corresponding Author | Sun, CP , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China |
| Recommended Citation 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):-. |
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