The rejuvenation effect in the two-state random energy model
Disordered Systems and Neural Networks
2009-10-31 v1
Abstract
Theoretical analyses of the random energy model with only two states and its extension with a hierarchy of only two levels show that these models reproduce out-of-equilibrium phenomena observed in experiments of glassy materials; the rejuvenation effect (the chaos effect), i.e. the abrupt jump and subsequent relaxation of the out-of-phase susceptibility as if the system rejuvenates when the temperature is lowered, and the power-law relaxation of the two-time correlation function. Our results suggest that also in an assembly of small systems with relaxation times distributed broadly some of these interesting out-of-equilibrium phenomena can be observed.
Keywords
Cite
@article{arxiv.cond-mat/0012455,
title = {The rejuvenation effect in the two-state random energy model},
author = {Mitsuhiro Kawasaki},
journal= {arXiv preprint arXiv:cond-mat/0012455},
year = {2009}
}
Comments
11 pages, 4 figures, submitted to J.Phys. Soc. Jpn