Fluctuation Dissipation Ratio in Three-Dimensional Spin Glasses

TL;DR

This paper investigates aging in 3D Edwards Anderson spin glasses by analyzing fluctuation dissipation ratios, comparing numerical data with dynamical mean field theory predictions to understand non-equilibrium dynamics.

Contribution

It provides the first detailed measurement of the fluctuation dissipation ratio in 3D spin glasses, bridging numerical simulations with theoretical models.

Findings

Measured the fluctuation dissipation ratio x(q) in 3D spin glasses.

Found agreement between numerical data and dynamical mean field theory predictions.

Enhanced understanding of aging and non-equilibrium behavior in disordered magnetic systems.

Abstract

We present an analysis of the data on aging in the three-dimensional Edwards Anderson spin glass model with nearest neighbor interactions, which is well suited for the comparison with a recently developed dynamical mean field theory. We measure the parameter $x(q)$ describing the violation of the relation among correlation and response function implied by the fluctuation dissipation theorem.