Interface tension of the 3d 4-state Potts model using the Wang-Landau algorithm

Details Interface tension of the 3d 4-state Potts model using the Wang-Landau algorithm Interface tension of the 3d 4-state Potts model using the Wang-Landau algorithm

2011-11-21

arxiv.org/abs/1111.4832v1

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 4 figures, talk presented at The XXIX International Symposium on Lattice Field Theory, July 10 - 16, 2011, Squaw Vall

Scientific paper

We study the interface tension of the 4-state Potts model in three dimensions using the Wang- Landau algorithm. The interface tension is given by the ratio of the partition function with a twisted boundary condition in one direction and periodic boundary conditions in all other directions over the partition function with periodic boundary conditions in all directions. With the Wang-Landau algorithm we can explicitly calculate both partition functions and obtain the result for all temperatures. We find solid numerical evidence for perfect wetting. Our algorithm is tested by calculating thermodynamic quantities at the phase transition point.

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