Determining the critical coupling of explosive synchronization transitions in scale-free networks by mean-field approximations

Details Determining the critical coupling of explosive synchronization transitions in scale-free networks by mean-field approximations Determining the critical coupling of explosive synchronization transitions in scale-free networks by mean-field approximations

2012-04-21

arxiv.org/abs/1204.4768v1

Physics

Condensed Matter

Statistical Mechanics

5 pages, 5 figures

Scientific paper

Explosive synchronization can be observed in scale-free networks when Kuramoto oscillators have natural frequencies equal to their number of connections. In the current work, we took into account mean-field approximations to determine the critical coupling of such explosive synchronization. The obtained equation for the critical coupling has an inverse dependence with the network average degree. This expression differs from that calculated when the frequency distributions are unimodal and even. In this case, the critical coupling depends on the ratio between the first and second statistical moments of the degree distribution. We also conducted numerical simulations to verify our analytical results.

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