Splitting the multiphase point
Condensed Matter
2007-05-23 v1
Abstract
Models with competing interactions, for example the ANNNI model, can have special points at which the ground state is infinitely degenerate, so-called multiphase points. Small perturbations can lift this degeneracy and give rise to infinite sequences of long-period phases. This paper compares the effect of three possible perturbations, quantum fluctuations, thermal fluctuations and the softening of the spins from their quantised positions.
Cite
@article{arxiv.cond-mat/9506129,
title = {Splitting the multiphase point},
author = {J. M. Yeomans},
journal= {arXiv preprint arXiv:cond-mat/9506129},
year = {2007}
}
Comments
14 pages, Revtex, 3 Figs. available upon request Oxford University