research

The fluctuation-dissipation theorem and the linear Glauber model

Abstract

We obtain exact expressions for the two-time autocorrelation and response functions of the dd-dimensional linear Glauber model. Although this linear model does not obey detailed balance in dimensions d2d\geq 2, we show that the usual form of the fluctuation-dissipation ratio still holds in the stationary regime. In the transient regime, we show the occurence of aging, with a special limit of the fluctuation-dissipation ratio, X=1/2X_{\infty}=1/2, for a quench at the critical point.Comment: Accepted for publication (Physical Review E

    Similar works

    Full text

    thumbnail-image

    Available Versions

    Last time updated on 03/01/2020