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Constrained percolation, Ising model and XOR Ising model on planar lattices. (arXiv:1707.04183v1 [math.PR])
来源于:arXiv
We study constrained percolation models on planar lattices including the
$[m,4,n,4]$ lattice and the square tilings of the hyperbolic plane, satisfying
certain local constraints on faces of degree 4, and investigate the existence
of infinite clusters. The constrained percolation models on these lattices are
closely related to Ising models and XOR Ising models on regular tilings of the
Euclidean plane or the hyperbolic plane. In particular, we obtain a complete
picture of the number of infinite "$+$" and "$-$" clusters of the ferromagnetic
Ising model with the free boundary condition on a vertex-transitive triangular
tiling of the hyperbolic plane with all the possible values of coupling
constants. Our results show that for the Ising model on a vertex-transitive
triangular tiling of the hyperbolic plane, it is possible that its random
cluster representation has no infinite open clusters, while the Ising model has
infinitely many infinite "$+$"-clusters and infinitely many infinite
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