• Corpus ID: 118142293

Entropic Coulomb Forces in Ising and Potts Antiferromagnets and Ice Models

@inproceedings{Moore1999EntropicCF,
  title={Entropic Coulomb Forces in Ising and Potts Antiferromagnets and Ice Models},
  author={Cristopher Moore and Mats G. Nordahl and Nelson Minar and Cosma Rohilla Shalizi},
  year={1999}
}
We study topological defects in the triangular Ising antiferromagnet, a related model on the square lattice equivalent to the six-vertex ice model, and the three-state antiferromagnetic Potts model on the square lattice. We suggest that in each case, defects are attracted or repelled with a Coulomb force mediated through correlations in the surrounding lattice. Since the energy of the two defects does not depend on the distance between them, this force is entropically driven. We give numerical… 

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