Convergence of threshold estimates for two-dimensional percolation

Details Convergence of threshold estimates for two-dimensional percolation Convergence of threshold estimates for two-dimensional percolation

2002-03-24

arxiv.org/abs/cond-mat/0203496v1

Phys. Rev. E 66, 016129 (2002)

Physics

Condensed Matter

Statistical Mechanics

11 pages, 4 figures

Scientific paper

10.1103/PhysRevE.66.016129

Using a recently introduced algorithm for simulating percolation in microcanonical (fixed-occupancy) samples, we study the convergence with increasing system size of a number of estimates for the percolation threshold for an open system with a square boundary, specifically for site percolation on a square lattice. We show that the convergence of the so-called "average-probability" estimate is described by a non-trivial correction-to-scaling exponent as predicted previously, and measure the value of this exponent to be 0.90(2). For the "median" and "cell-to-cell" estimates of the percolation threshold we verify that convergence does not depend on this exponent, having instead a slightly faster convergence with a trivial analytic leading exponent.

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