Crossing on hyperbolic lattices
Abstract
We divide the circular boundary of a hyperbolic lattice into four equal intervals, and study the probability of a percolation crossing between an opposite pair, as a function of the bond occupation probability p. We consider the 7,3 (heptagonal), enhanced or extended binary tree (EBT), the EBT-dual, and 5,5 (pentagonal) lattices. We find that the crossing probability increases gradually from zero to one as p increases from the lower pl to the upper pu critical values. We find bounds and estimates for the values of p l and pu for these lattices, and identify the self-duality point p* corresponding to where the crossing probability equals 1/2. Comparison is made with recent numerical and theoretical results.
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