Glauber evolution with Kac potentials: II. Fluctuations

Glauber evolution with Kac potentials: II. Fluctuations
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具有 Kac 势的 Glauber 演化:II。

DOI:
10.1088/0951-7715/9/1/002
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发表时间:
1996
期刊:
影响因子:
1.7
通讯作者:
L. Triolo
L. Triolo
中科院分区:
数学2区
文献类型:
--
作者:
A. Masi;E. Orlandi;E. Presutti;L. Triolo

文献摘要

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在本文中,我们继续分析具有Kac相互作用的Ising系统中的Glauber演化。在第一篇论文中,我们证明了在连续介质极限,即介观极限下,磁化密度收敛于一个非局部确定性方程的解。本文研究了证明广义Ornstein - Uhlenbeck过程收敛性的极限附近涨落问题。我们还证明了相关函数的渐近公式,这些公式改进了前一篇文章中建立的公式,并将在后续的文章中用于研究相分离。
In this paper we continue the analysis of the Glauber evolution in Ising systems with Kac interactions. In the first paper, we have proved that in a continuum limit, called the mesoscopic limit, the magnetization density converges to the solution of a non-local deterministic equation. Here we study the fluctuations around the limit proving convergence to a generalized Ornstein - Uhlenbeck process. We also prove asymptotic formulae for the correlation functions that improve those established in the previous paper and that will be used in a successive paper to study phase separation.