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题名: Microscopic work distribution of small systems in quantum isothermal processes and the minimal work principle
作者: Quan, H. T. ;  Yang, S. ;  Sun, C. P.
刊名: PHYSICAL REVIEW E
出版日期: 2008
卷号: 78, 期号:2, 页码:-
关键词: FREE-ENERGY DIFFERENCES ;  NONEQUILIBRIUM MEASUREMENTS
学科分类: Physics
通讯作者: Quan, HT , Los Alamos Natl Lab, Div Theoret, MS B213, Los Alamos, NM 87545 USA
部门归属: [Quan, HT] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA; [Yang, S; Sun, CP] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: For a two-level quantum mechanical system, we derive microscopically the exact expression for the fluctuation of microscopic work in. a multistep nonequilibrium process, and we rigorously prove that in an isothermal process, the fluctuation is vanishingly small and the most probabilistic work is just equal to the difference of the free energy. Our study demonstrates that the convergence of the microscopic work in the isothermal process is due to the nature of the isothermal process rather than the usual thermodynamic limit condition. Our investigation justifies the validity of a "minimum work principle" formulation of the second law even for a small system far from the thermodynamic limit.
资助者: U.S. Department of Energy; NSFC[90203018, 10474104, 60433050, 10704023]; NFRPC[2006CB921205, 2005CB724508]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000259263600025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5492
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Quan, H. T.,Yang, S.,Sun, C. P.. Microscopic work distribution of small systems in quantum isothermal processes and the minimal work principle[J]. PHYSICAL REVIEW E,2008,78(2):-.
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