Equivalence condition for the canonical and microcanonical ensembles in coupled spin systems

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	Zhang, Wenxian; Sun, C. P.; Nori, Franco; Zhang, WX , Fudan Univ, Key Lab Micro & Nano Photon Struct, Dept Opt Sci & Engn, Shanghai 200433, Peoples R China
	Equivalence condition for the canonical and microcanonical ensembles in coupled spin systems
发表期刊	PHYSICAL REVIEW E
摘要	It is typically assumed, without justification, that a weak coupling between a system and a bath is a necessary condition for the equivalence of a canonical ensemble and a microcanonical ensemble. For instance, in a canonical ensemble, temperature emerges if the system and the bath are uncoupled or weakly coupled. We investigate the validity region of this weak-coupling approximation, using a coupled composite-spin system. Our results show that the spin coupling strength can be as large as the level spacing of the system, indicating that the weak-coupling approximation has a much wider region of validity than usually expected.
	2010
ISSN	1539-3755
卷号	82 期号:4 页码:-
学科领域	Physics
收录类别	SCI
项目资助者	National Basic Research Program of China[2009CB929300]; NCET; Doctoral Program of Higher Education of China[20090071120013]; Shanghai Pujiang Program[10PJ1401300]; NSFC[10974209, 10935010]; National 973 program[2006CB921205]; Laboratory of Physical Sciences; National Security Agency; Army Research Office; National Science Foundation[0726909]; DARPA; AFOSR; JSPS-RFBR[09-02-92114]; MEXT Kakenhi on Quantum Cybernetics; Funding Program for Innovative R&D on ST (FIRST) ; National Basic Research Program of China[2009CB929300]; NCET; Doctoral Program of Higher Education of China[20090071120013]; Shanghai Pujiang Program[10PJ1401300]; NSFC[10974209, 10935010]; National 973 program[2006CB921205]; Laboratory of Physical Sciences; National Security Agency; Army Research Office; National Science Foundation[0726909]; DARPA; AFOSR; JSPS-RFBR[09-02-92114]; MEXT Kakenhi on Quantum Cybernetics; Funding Program for Innovative R&D on ST (FIRST) ; National Basic Research Program of China[2009CB929300]; NCET; Doctoral Program of Higher Education of China[20090071120013]; Shanghai Pujiang Program[10PJ1401300]; NSFC[10974209, 10935010]; National 973 program[2006CB921205]; Laboratory of Physical Sciences; National Security Agency; Army Research Office; National Science Foundation[0726909]; DARPA; AFOSR; JSPS-RFBR[09-02-92114]; MEXT Kakenhi on Quantum Cybernetics; Funding Program for Innovative R&D on ST (FIRST) ; National Basic Research Program of China[2009CB929300]; NCET; Doctoral Program of Higher Education of China[20090071120013]; Shanghai Pujiang Program[10PJ1401300]; NSFC[10974209, 10935010]; National 973 program[2006CB921205]; Laboratory of Physical Sciences; National Security Agency; Army Research Office; National Science Foundation[0726909]; DARPA; AFOSR; JSPS-RFBR[09-02-92114]; MEXT Kakenhi on Quantum Cybernetics; Funding Program for Innovative R&D on ST (FIRST)
引用统计	被引频次：9[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/311006/5025
专题	理论物理所科研产出_SCI论文
通讯作者	Zhang, WX , Fudan Univ, Key Lab Micro & Nano Photon Struct, Dept Opt Sci & Engn, Shanghai 200433, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Wenxian,Sun, C. P.,Nori, Franco,et al. Equivalence condition for the canonical and microcanonical ensembles in coupled spin systems[J]. PHYSICAL REVIEW E,2010,82(4):-.
APA	Zhang, Wenxian,Sun, C. P.,Nori, Franco,&Zhang, WX , Fudan Univ, Key Lab Micro & Nano Photon Struct, Dept Opt Sci & Engn, Shanghai 200433, Peoples R China.(2010).Equivalence condition for the canonical and microcanonical ensembles in coupled spin systems.PHYSICAL REVIEW E,82(4),-.
MLA	Zhang, Wenxian,et al."Equivalence condition for the canonical and microcanonical ensembles in coupled spin systems".PHYSICAL REVIEW E 82.4(2010):-.

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