Abstract
We study the antiferromagnetic q-state Potts model on the square lattice for q=3 and 4, using the Wang-Swendsen-Kotecký Monte Carlo algorithm and a finite-size-scaling extrapolation method. For q=3, we obtain good control up to correlation length ξ∼5000; the data are consistent with ξ(β)=β(1++...) as β→∞. For q=4, the model is disordered even at zero temperature.
- Received 14 November 1994
DOI:https://doi.org/10.1103/PhysRevB.51.6727
©1995 American Physical Society