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Yao, Jie1; Wang, Yanting1
Statistical mechanics of a nonequilibrium steady-state classical particle system driven by a constant external force
Source PublicationCOMMUNICATIONS IN THEORETICAL PHYSICS
Language英语
KeywordMOLECULAR-DYNAMICS ELECTRODE/ELECTROLYTE INTERFACE
AbstractA 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.
2020
ISSN0253-6102
Volume72Issue:11Pages:115601
Cooperation Status国内
Subject AreaPhysics
MOST Discipline CataloguePhysics, Multidisciplinary
DOI10.1088/1572-9494/abb7d2
Indexed BySCIE
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27486
CollectionSCI期刊论文
Affiliation1.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
Recommended Citation
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.
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