Phase transition in the 3-state Potts antiferromagnet on the diced lattice
Statistical Mechanics
2009-04-20 v3 High Energy Physics - Lattice
Mathematical Physics
math.MP
Abstract
We prove that the 3-state Potts antiferromagnet on the diced lattice (dual of the kagome lattice) has entropically-driven long-range order at low temperatures (including zero). We then present Monte Carlo simulations, using a cluster algorithm, of the 3-state and 4-state models. The 3-state model has a phase transition to the high-temperature disordered phase at v = e^J - 1 = -0.860599 +- 0.000004 that appears to be in the universality class of the 3-state Potts ferromagnet. The 4-state model is disordered throughout the physical region, including at zero temperature.
Keywords
Cite
@article{arxiv.0802.2270,
title = {Phase transition in the 3-state Potts antiferromagnet on the diced lattice},
author = {Roman Kotecky and Jesus Salas and Alan D. Sokal},
journal= {arXiv preprint arXiv:0802.2270},
year = {2009}
}
Comments
4 pages, LaTeX2e/revtex4, includes 4 figures. Version 3 (published in PRL) contains several small improvements in response to referees' comments