English

Sharp thresholds for the random-cluster and Ising models

Probability 2011-01-06 v2

Abstract

A sharp-threshold theorem is proved for box-crossing probabilities on the square lattice. The models in question are the random-cluster model near the self-dual point psd(q)=q/(1+q)p_{\mathrm {sd}}(q)=\sqrt{q}/(1+\sqrt{q}), the Ising model with external field, and the colored random-cluster model. The principal technique is an extension of the influence theorem for monotonic probability measures applied to increasing events with no assumption of symmetry.

Keywords

Cite

@article{arxiv.0903.1501,
  title  = {Sharp thresholds for the random-cluster and Ising models},
  author = {Benjamin Graham and Geoffrey Grimmett},
  journal= {arXiv preprint arXiv:0903.1501},
  year   = {2011}
}

Comments

Published in at http://dx.doi.org/10.1214/10-AAP693 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)

R2 v1 2026-06-21T12:19:44.179Z