Europhys. Lett., 55 (6) , pp. 762-766 (2001)
Incipient spanning cluster on small-world networks
M. OzanaDepartment of Theoretical Physics, Umeå University - 901 87 Umeå, Sweden ozana@tp.umu.se
(Received 23 April 2001; accepted in final form 4 July 2001)
Abstract
We analyze the scaling properties of the largest cluster size for the site
percolation problem on small-world graphs.
It is shown how the presence of the extra length-scale, the small-world
crossover length
, influences the fractal dimension D of the spanning cluster.
Using the results for dimension d=2 we find
the critical exponent
governing the cluster size distribution
. This implies that
is universal and independent of
d in agreement with the conjecture by Moore and Newman (
Phys. Rev. E
, 62 (2000) 7059).
05.10.-a - Computational methods in statistical physics and nonlinear dynamics.
05.40.-a - Fluctuation phenomena, random processes, noise, and Brownian motion.
64.60.Ak - Renormalization-group, fractal, and percolation studies of phase transitions.
© EDP Sciences 2001


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