Enhancing synchronization in complex networks of coupled phase oscillators

Details Enhancing synchronization in complex networks of coupled phase oscillators Enhancing synchronization in complex networks of coupled phase oscillators

2007-11-09

arxiv.org/abs/0711.1409v2

Nonlinear Sciences

Chaotic Dynamics

4 pages, 3 figures

Scientific paper

By a model of coupled phase oscillators, we show analytically how synchronization in {\em non-identical} complex networks can be enhanced by introducing a proper gradient into the couplings. It is found that, by pointing the gradient from the large-degree to the small-degree nodes on each link, increasing the gradient strength will bring forward the {\em onset} of network synchronization monotonically, and, under the same gradient strength, heterogeneous networks are more synchronizable than homogeneous networks. These findings are verified by extensive simulations.

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