English

Generalized off-equilibrium fluctuation-dissipation relations in random Ising systems

Disordered Systems and Neural Networks 2009-10-31 v2 Statistical Mechanics

Abstract

We show that the numerical method based on the off-equilibrium fluctuation-dissipation relation does work and is very useful and powerful in the study of disordered systems which show a very slow dynamics. We have verified that it gives the right information in the known cases (diluted ferromagnets and random field Ising model far from the critical point) and we used it to obtain more convincing results on the frozen phase of finite-dimensional spin glasses. Moreover we used it to study the Griffiths phase of the diluted and the random field Ising models.

Keywords

Cite

@article{arxiv.cond-mat/9811374,
  title  = {Generalized off-equilibrium fluctuation-dissipation relations in random Ising systems},
  author = {Giorgio Parisi and Federico Ricci-Tersenghi and Juan J. Ruiz-Lorenzo},
  journal= {arXiv preprint arXiv:cond-mat/9811374},
  year   = {2009}
}

Comments

20 pages, 10 figures, uses epsfig.sty. Partially presented at StatPhys XX in a talk by one of the authors (FRT). Added 1 reference in the new version