Is demagnetization an efficient optimization method?
Statistical Mechanics
2015-06-25 v1 Materials Science
Abstract
Demagnetization, commonly employed to study ferromagnets, has been proposed as the basis for an optimization tool, a method to find the ground state of a disordered system. Here we present a detailed comparison between the ground state and the demagnetized state in the random field Ising model, combing exact results in and numerical solutions in . We show that there are important differences between the two states that persist in the thermodynamic limit and thus conclude that AC demagnetization is not an efficient optimization method.
Keywords
Cite
@article{arxiv.cond-mat/0507297,
title = {Is demagnetization an efficient optimization method?},
author = {S. Zapperi and F. Colaiori and L. Dante and V. Basso and G. Durin and A. Magni and M. J. Alava},
journal= {arXiv preprint arXiv:cond-mat/0507297},
year = {2015}
}
Comments
2 pages, 1 figure