Equilibrium fluctuations for a system of harmonic oscillators with conservative noise

被引：11

作者：

Fritz, J

Nagy, K

Olla, S

机构：

[1] Budapest Univ Technol & Econ, Inst Math, H-1111 Budapest, Hungary

[2] Univ Paris 09, CNRS, UMR 7534, CEREMADE, F-75775 Paris 16, France

来源：

JOURNAL OF STATISTICAL PHYSICS | 2006年 / 122卷 / 03期

关键词：

harmonic chain; two-component models; equilibrium fluctuations; non-gradient methods; generalized Ornstein-Uhlenbeck processes;

D O I：

10.1007/s10955-005-8070-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the harmonic chain forced by a multiplicative noise, the evolution is given by an infinite system of stochastic differential equations. Total energy and deformation are preserved, the conservation of momentum is destroyed by the noise. Gaussian product measures are the extrernal stationary states of this model. Equilibrium fluctuations of the conserved fields at a diffusive scaling are described by a couple of generalized Ornstein-Uhlenbeck processes.

引用

页码：399 / 415

页数：17

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