Dense loops, supersymmetry, and Goldstone phases in two dimensions
Statistical Mechanics
2009-11-07 v1 High Energy Physics - Theory
Abstract
Loop models in two dimensions can be related to O(N) models. The low-temperature dense-loops phase of such a model, or of its reformulation using a supergroup as symmetry, can have a Goldstone broken-symmetry phase for N<2. We argue that this phase is generic for -2< N <2 when crossings of loops are allowed, and distinct from the model of non-crossing dense loops first studied by Nienhuis [Phys. Rev. Lett. 49, 1062 (1982)]. Our arguments are supported by our numerical results, and by a lattice model solved exactly by Martins et al. [Phys. Rev. Lett. 81, 504 (1998)].
Cite
@article{arxiv.cond-mat/0205033,
title = {Dense loops, supersymmetry, and Goldstone phases in two dimensions},
author = {J. L. Jacobsen and N. Read and H. Saleur},
journal= {arXiv preprint arXiv:cond-mat/0205033},
year = {2009}
}
Comments
RevTeX, 5 pages, 3 postscript figures