Generalized off-equilibrium fluctuation-dissipation relations in random Ising systems
Dipartimento di Fisica and INFN, Università di Roma I "", Piazza A.
Moro 2, 00185 Roma, Italy
2 Departamento de Física Teórica I, Universidad Complutense de Madrid, 28040 Madrid, Spain
Corresponding author: a firstname.lastname@example.org
Revised: 17 February 1999
Published online: 15 September 1999
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 four-dimensional spin glasses. Moreover we used it to study the Griffiths phase of the diluted and the random field Ising models.
PACS: 05.50.+q – Lattice theory and statistics (Ising, Potts, etc.) / 75.10.Nr – Spin-glass and other random models / 75.40.Mg – Numerical simulation studies
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1999