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Quantum thermalization with couplings
Dong, H.; Yang, S.; Liu, X. F.; Sun, C. P.; Sun, CP , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
2007
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号76期号:4页码:-
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.
部门归属[Dong, H; Yang, S; Sun, CP] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; [Liu, XF] Beijing Univ, Dept Math, Beijing 100871, Peoples R China
关键词Statistical-mechanics
学科领域Physics
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收录类别SCI
WOS记录号WOS:000250619700218
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被引频次:21[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5645
专题理论物理所SCI论文
通讯作者Sun, CP , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
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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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