Universality of KPZ equation

Universality of KPZ equation
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发表时间:
2010-03
期刊:
arXiv: Probability
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通讯作者:
P. Gonçalves;M. Jara
P. Gonçalves;M. Jara
中科院分区:
其他
文献类型:
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作者:
P. Gonçalves;M. Jara

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我们引入了KPZ方程能量解的概念。在最小的假设下,我们证明了一维弱非对称保守粒子系统相对于定态的密度涨落是由KPZ方程的能量解给出的.因此,我们证明了Cole-Hofp解也是KPZ方程的能量解。
We introduce the notion of energy solutions of the KPZ equation. Under minimal assumptions, we prove that the density fluctuations of one-dimensional, weakly asymmetric, conservative particle systems with respect to the stationary states are given by energy solutions of the KPZ equation. As a consequence, we prove that the Cole-Hofp solutions are also energy solutions of the KPZ equation.