English

Critical slowing down exponents in quenched disordered spin models for structural glasses: Random Orthogonal and related models

Disordered Systems and Neural Networks 2013-01-30 v1 Statistical Mechanics

Abstract

An important prediction of Mode-Coupling-Theory (MCT) is the relationship between the power- law decay exponents in the {\beta} regime. In the original structural glass context this relationship follows from the MCT equations that are obtained making rather uncontrolled approximations and {\lambda} has to be treated like a tunable parameter. It is known that a certain class of mean-field spin-glass models is exactly described by MCT equations. In this context, the physical meaning of the so called parameter exponent {\lambda} has recently been unveiled, giving a method to compute it exactly in a static framework. In this paper we exploit this new technique to compute the critical slowing down exponents in a class of mean-field Ising spin-glass models including, as special cases, the Sherrington-Kirkpatrick model, the p-spin model and the Random Orthogonal model.

Keywords

Cite

@article{arxiv.1203.2249,
  title  = {Critical slowing down exponents in quenched disordered spin models for structural glasses: Random Orthogonal and related models},
  author = {Francesco Caltagirone and Ulisse Ferrari and Luca Leuzzi and Giorgio Parisi and Tommaso Rizzo},
  journal= {arXiv preprint arXiv:1203.2249},
  year   = {2013}
}

Comments

7 pages, 3 figures