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arXiv 1008.3463cond-mat.stat-mech
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KPZ界面的熵产生和涨落关系

Entropy production and fluctuation relations for a KPZ interface

A C Barato, R Chetrite, H Hinrichsen, D Mukamel

摘要:

本文研究了KPZ方程的微观实现--受限固体-固体生长模型中的熵产生和涨落关系。精确地在相图的特定线上求解一维模型,我们证明熵产生量化了离平衡的距离。此外,作为一个例子,一个物理相关的电流不同的熵,我们研究的大偏差函数与界面高度的对称性。在长度L=4的系统的特殊情况下,我们发现高度变化的概率分布具有对称的大偏差函数,显示出不同于Gallavotti-Cohen对称性的对称性。

英文摘要:

We study entropy production and fluctuation relations in the restricted solid-on-solid growth model, which is a microscopic realization of the KPZ equation. Solving the one dimensional model exactly on a particular line of the phase diagram we demonstrate that entropy production quantifies the distance from equilibrium. Moreover, as an example of a physically relevant current different from the entropy, we study the symmetry of the large deviation function associated with the interface height. In a special case of a system of length L=4 we find that the probability distribution of the variation of height has a symmetric large deviation function, displaying a symmetry different from the Gallavotti-Cohen symmetry.

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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