摘要翻译:
我们给出了非平衡稳态下介观系统的动力学密度和电流涨落的泛函的显式结构。它的标准形式决定了一个推广的Onsager-Machlup理论。我们假设系统描述为满足局部详细平衡条件的马尔可夫跳跃过程,如随机格子气体和化学网络的典型情况。我们将熵、电流和介观态间的流量作为涨落泛函中相对于平衡动力学的附加项。密度涨落和电流涨落一般是耦合的,但在接近平衡的情况下,它们的解耦解释了熵产生原理的有效性。
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英文标题:
《Canonical structure of dynamical fluctuations in mesoscopic
nonequilibrium steady states》
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作者:
Christian Maes and Karel Neto\v{c}n\'y
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最新提交年份:
2007
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分类信息:
一级分类:Physics 物理学
二级分类:Statistical Mechanics 统计力学
分类描述:Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变,热力学,场论,非平衡现象,重整化群和标度,可积模型,湍流
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一级分类:Physics 物理学
二级分类:Soft Condensed Matter 软凝聚态物质
分类描述:Membranes, polymers, liquid crystals, glasses, colloids, granular matter
膜,聚合物,液晶,玻璃,胶体,颗粒物质
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英文摘要:
We give the explicit structure of the functional governing the dynamical density and current fluctuations for a mesoscopic system in a nonequilibrium steady state. Its canonical form determines a generalised Onsager-Machlup theory. We assume that the system is described as a Markov jump process satisfying a local detailed balance condition such as typical for stochastic lattice gases and for chemical networks. We identify the entropy current and the traffic between the mesoscopic states as extra terms in the fluctuation functional with respect to the equilibrium dynamics. The density and current fluctuations are coupled in general, except close to equilibrium where their decoupling explains the validity of entropy production principles.
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PDF链接:
https://arxiv.org/pdf/705.2344


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