paper

Universality of the excess number of clusters and the crossing probability function in three-dimensional percolation

arXiv:cond-mat/9806224 · doi:10.1088/0305-4470/31/40/009

Abstract

Extensive Monte-Carlo simulations were performed to evaluate the excess number of clusters and the crossing probability function for three-dimensional percolation on the simple cubic (s.c.), face-centered cubic (f.c.c.), and body-centered cubic (b.c.c.) lattices. Systems L x L x L' with L' >> L were studied for both bond (s.c., f.c.c., b.c.c.) and site (f.c.c.) percolation. The excess number of clusters per unit length was confirmed to be a universal quantity with a value . Likewise, the critical crossing probability in the L' direction, with periodic boundary conditions in the L x L plane, was found to follow a universal exponential decay as a function of r = L'/L for large r. Simulations were also carried out to find new precise values of the critical thresholds for site percolation on the f.c.c. and b.c.c. lattices, yielding , .

14 pages, 7 figures, LaTeX, submitted to J. Phys. A: Math. Gen, added references, corrected typos

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