Disorder chaos in spin glasses
Disordered Systems and Neural Networks
2007-05-23 v2 Statistical Mechanics
Abstract
We investigate numerically disorder chaos in spin glasses, i.e. the sensitivity of the ground state to small changes of the random couplings. Our study focuses on the Edwards-Anderson model in d=1,2,3 and in mean-field. We find that in all cases, simple scaling laws, involving the size of the system and the strength of the perturbation, are obeyed. We characterize in detail the distribution of overlap between ground states and the geometrical properties of flipped spin clusters in both the weak and strong chaos regime. The possible relevance of these results to temperature chaos is discussed.
Keywords
Cite
@article{arxiv.cond-mat/0507555,
title = {Disorder chaos in spin glasses},
author = {Florent Krzakala and Jean-Philippe Bouchaud},
journal= {arXiv preprint arXiv:cond-mat/0507555},
year = {2007}
}
Comments
7 pages, 8 figures, replaced with accepted version