Glauber evolution with Kac potentials: II. Fluctuations
Glauber evolution with Kac potentials: II. Fluctuations
复制标题
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
中科院分区:
文献类型:
--
作者:
A. Masi;E. Orlandi;E. Presutti;L. Triolo
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.