Scaling behavior of explosive percolation on the square lattice

Details Scaling behavior of explosive percolation on the square lattice Scaling behavior of explosive percolation on the square lattice

2009-12-07

arxiv.org/abs/0912.1060v3

Physics

Condensed Matter

Disordered Systems and Neural Networks

v2: Updated results in original version with new data; expanded discussion. v3: Resubmitted version. New figures, references

Scientific paper

Clusters generated by the product-rule growth model of Achlioptas, D'Souza, and Spencer on a two-dimensional square lattice are shown to obey qualitatively different scaling behavior than standard (random growth) percolation. The threshold with unrestricted bond placement (allowing loops) is found precisely using several different criteria based upon both moments and wrapping probabilities, yielding p_c = 0.526565 +/- 0.000005, consistent with the recent result of Radicchi and Fortunato. The correlation-length exponent nu is found to be close to 1. The qualitative difference from regular percolation is shown dramatically in the behavior of the percolation probability P_(infinity) (size of largest cluster), the susceptibility, and of the second moment of finite clusters, where discontinuities appears at the threshold. The critical cluster-size distribution does not follow a consistent power-law for the range of system sizes we study L 2 for larger L.

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