Statistical mechanics of a nonequilibrium steady-state classical particle system driven by a constant external force

doi:10.1088/1572-9494/abb7d2

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	Statistical mechanics of a nonequilibrium steady-state classical particle system driven by a constant external force
	Yao, Jie 1; Wang, Yanting 1
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2020
卷号	72 期号:11 页码:115601
关键词	MOLECULAR-DYNAMICS ELECTRODE/ELECTROLYTE INTERFACE
ISSN号	0253-6102
DOI	10.1088/1572-9494/abb7d2
英文摘要	A classical particle system coupled with a thermostat driven by an external constant force reaches its steady state when the ensemble-averaged drift velocity does not vary with time. In this work, the statistical mechanics of such a system is derived solely based on the equiprobability and ergodicity principles, free from any conclusions drawn on equilibrium statistical mechanics or local equilibrium hypothesis. The momentum space distribution is determined by a random walk argument, and the position space distribution is determined by employing the equiprobability and ergodicity principles. The expressions for energy, entropy, free energy, and pressures are then deduced, and the relation among external force, drift velocity, and temperature is also established. Moreover, the relaxation towards its equilibrium is found to be an exponentially decaying process obeying the minimum entropy production theorem.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27486]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, 55 East Zhongguancun Rd,POB 2735, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yao, Jie,Wang, Yanting. Statistical mechanics of a nonequilibrium steady-state classical particle system driven by a constant external force[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2020,72(11):115601.
APA	Yao, Jie,&Wang, Yanting.(2020).Statistical mechanics of a nonequilibrium steady-state classical particle system driven by a constant external force.COMMUNICATIONS IN THEORETICAL PHYSICS,72(11),115601.
MLA	Yao, Jie,et al."Statistical mechanics of a nonequilibrium steady-state classical particle system driven by a constant external force".COMMUNICATIONS IN THEORETICAL PHYSICS 72.11(2020):115601.