Measuring the fluctuation-dissipation ratio in glassy systems with no perturbing field

TL;DR

This paper introduces a novel method to measure the integrated response in Ising spin systems without applying external perturbations, validated through large-scale simulations on various models, providing precise fluctuation-dissipation ratio measurements.

Contribution

The paper presents a new technique for measuring response functions in spin systems without perturbations, enabling more accurate and less invasive analysis.

Findings

Successful measurement of fluctuation-dissipation ratios in three different Ising models

Method works effectively across diverse system types

Provides high-precision results without external perturbations

Abstract

A method is presented for measuring the integrated response in Ising spin system without applying any perturbing field. Large-scale simulations are performed in order to show how the method works. Very precise measurements of the fluctuation-dissipation ratio are presented for 3 different Ising models: the 2-dimensional ferromagnetic model, the mean-field diluted 3-spin model, and the 3-dimensional Edwards-Anderson model.