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arXiv 1012.1136cond-mat.stat-mech
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非平衡系统的微观与宏观方法

Microscopic versus macroscopic approaches to non-equilibrium systems

Bernard Derrida

摘要:

一维对称简单排斥过程(SSEP)是非平衡统计物理中极少数精确可解的模型之一。它描述了一个质点系,该质点系在与两个密度不相等的质点库接触的一维晶格上以硬核排斥扩散。本说明的目的是审查两个主要的方法,导致在其稳定状态下的SSEP密度的大偏差泛函的精确表达:微观方法(基于矩阵积animals和可加性属性)和宏观方法(基于Bertini,De Sole,Gabrielli,Jona-Lasinio和Landim的宏观波动理论)。

英文摘要:

The one dimensional symmetric simple exclusion process (SSEP) is one of the very few exactly soluble models of non-equilibrium statistical physics. It describes a system of particles which diffuse with hard core repulsion on a one dimensional lattice in contact with two reservoirs of particles at unequal densities. The goal of this note is to review the two main approaches which lead to the exact expression of the large deviation functional of the density of the SSEP in its steady state: a microscopic approach (based on the matrix product ansatz and an additivity property) and a macroscopic approach (based on the macroscopic fluctuation theory of Bertini, De Sole, Gabrielli, Jona-Lasinio and Landim).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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