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arXiv 1904.03319math-phmath.MPmath.PR
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KPZ普适类及相关主题

The KPZ Universality Class and Related Topics

Axel Saenz

摘要:

这些笔记是基于在分析和数学物理的2018亚利桑那州学校给出的谈话。全面介绍了KPZ普适类,这是一类与$1+1$维随机增长过程相关的具有局部相互作用的随机过程。我们描述了一些特性的KPZ普适性类,如标度指数和极限统计。特别是,我们的目标是提取的KPZ普适性类的特征属性,通过理解KPZ随机偏微分方程的一个特殊的离散近似给出的不对称简单排斥过程(ASEP)。与ASEP的联系是非常重要的,因为该过程具有丰富的可积性结构,导致许多精确公式。

英文摘要:

These notes are based on a talk given at the 2018 Arizona School of Analysis and Mathematical Physics. We give a comprehensive introduction to the KPZ universality class, a conjectured class of stochastic process with local interactions related to random growth processes in $1+1$ dimensions. We describe some of the characteristic properties of the KPZ universality class such as scaling exponents and limiting statistics. In particular, we aim to extract the characteristic properties of the KPZ universality class by understanding the KPZ stochastic partial differential equation by a special discrete approximation given by the asymmetric simple exclusion process (ASEP). The connection with the ASEP is very important as the process enjoys a rich integrability structure that leads to many exact formulas.

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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