Free-Energy Barriers in the SK Model
Disordered Systems and Neural Networks
2007-05-23 v1
Abstract
The Sherrington-Kirkpatrick spin-glass model is investigated by means of Monte Carlo simulations employing a combination of the multi-overlap algorithm with parallel tempering methods. We investigate the finite-size scaling behaviour of the free-energy barriers which are visible in the probability density of the Parisi overlap parameter. Assuming that the mean barrier height diverges with the number of spins N as N^alpha, our data show good agreement with the theoretical value alpha = 1/3.
Cite
@article{arxiv.cond-mat/0603526,
title = {Free-Energy Barriers in the SK Model},
author = {Elmar Bittner and Wolfhard Janke},
journal= {arXiv preprint arXiv:cond-mat/0603526},
year = {2007}
}
Comments
7 pages, 4 figures