Defect energy of infinite-component vector spin glasses
Disordered Systems and Neural Networks
2009-11-11 v1 Statistical Mechanics
Abstract
We compute numerically the zero temperature defect energy, Delta E, of the vector spin glass in the limit of an infinite number of spin components m, for a range of dimensions 2 <= d <= 5. Fitting to Delta E ~ L^theta, where L is the system size, we obtain: theta = -1.54 (d=2), theta = -1.04 (d=3), theta = -0.67 (d=4) and theta = -0.37 (d=5). These results show that the lower critical dimension, d_l (the dimension where theta changes sign), is significantly higher for m=infinity than for finite m (where 2 < d_l < 3).
Cite
@article{arxiv.cond-mat/0505138,
title = {Defect energy of infinite-component vector spin glasses},
author = {L. W. Lee and A. P. Young},
journal= {arXiv preprint arXiv:cond-mat/0505138},
year = {2009}
}
Comments
4 pages, 5 figures