Anomalously Soft Droplets and Aging in Short-ranged Spin Glasses
Disordered Systems and Neural Networks
2007-05-23 v2 Statistical Mechanics
Abstract
We extend the standard droplet scaling theory for isothermal aging in spin glasses assuming that the effective stiffness constant of droplets as large as extended defects is vanishingly small. A novel dynamical order parameter and the associated dynamical susceptibility emerge. Breaking of the fluctuation dissipation theorem takes place at the dynamical order parameter well below the equilibrium Edwards-Anderson order parameter at which the time translational invariance is strongly broken. The scenario is examined numerically in a 4 dimensional EA Ising spin glass model.
Keywords
Cite
@article{arxiv.cond-mat/0202110,
title = {Anomalously Soft Droplets and Aging in Short-ranged Spin Glasses},
author = {Hajime Yoshino and Koji Hukushima and Hajime Takayama},
journal= {arXiv preprint arXiv:cond-mat/0202110},
year = {2007}
}
Comments
4 Pages, 2 figures, revised version