Scaling relation for determining the critical threshold for continuum percolation of overlapping discs of two sizes

Details Scaling relation for determining the critical threshold for continuum percolation of overlapping discs of two sizes Scaling relation for determining the critical threshold for continuum percolation of overlapping discs of two sizes

2009-07-10

arxiv.org/abs/0907.1768v3

Physics

Condensed Matter

Statistical Mechanics

4 pages, 3 figures

Scientific paper

We study continuum percolation of overlapping circular discs of two sizes. We propose a phenomenological scaling equation for the increase in the effective size of the larger discs due to the presence of the smaller discs. The critical percolation threshold as a function of the ratio of sizes of discs, for different values of the relative areal densities of two discs, can be described in terms of a scaling function of only one variable. The recent accurate Monte Carlo estimates of critical threshold by Quintanilla and Ziff [Phys. Rev. E, 76 051115 (2007)] are in very good agreement with the proposed scaling relation.

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