Percolation transition and distribution of connected components in generalized random network ensembles

Details Percolation transition and distribution of connected components in generalized random network ensembles Percolation transition and distribution of connected components in generalized random network ensembles

2009-01-21

arxiv.org/abs/0901.3225v2

J. Phys. A: Math. and Theor. 42, 2009, 195007

Physics

Condensed Matter

Statistical Mechanics

27 pages, 15 figures

Scientific paper

10.1088/1751-8113/42/19/195007

In this work, we study the percolation transition and large deviation properties of generalized canonical network ensembles. This new type of random networks might have a very rich complex structure, including high heterogeneous degree sequences, non-trivial community structure or specific spatial dependence of the link probability for networks embedded in a metric space. We find the cluster distribution of the networks in these ensembles by mapping the problem to a fully connected Potts model with heterogeneous couplings. We show that the nature of the Potts model phase transition, linked to the birth of a giant component, has a crossover from second to first order when the number of critical colors $q_c = 2$ in all the networks under study. These results shed light on the properties of dynamical processes defined on these network ensembles.

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