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arXiv 1709.04085math.PR
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无限阿特拉斯过程:收敛到均衡

The infinite Atlas process: Convergence to equilibrium

Amir Dembo, Milton Jara, Stefano Olla

摘要:

半无限阿特拉斯过程是一个一维布朗粒子系统,其中只有最左边的粒子向右漂移一个单位。它的粒子间距过程有无穷多个定态测度,只有一个显著的平移不变可逆测度。我们发现,后者是有吸引力的一个大类的初始配置缓慢增长(或有界)的粒子密度。我们证明的关键是一个新的估计的收敛速率的平衡粒子间距在一个三角形阵列的有限,大尺寸的系统。

英文摘要:

The semi-infinite Atlas process is a one-dimensional system of Brownian particles, where only the leftmost particle gets a unit drift to the right. Its particle spacing process has infinitely many stationary measures, with one distinguished translation invariant reversible measure. We show that the latter is attractive for a large class of initial configurations of slowly growing (or bounded) particle densities. Key to our proof is a new estimate on the rate of convergence to equilibrium for the particle spacing in a triangular array of finite, large size systems.

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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