Chimeras in networks of planar oscillators

Details Chimeras in networks of planar oscillators Chimeras in networks of planar oscillators

2010-06-23

arxiv.org/abs/1006.4413v1

Nonlinear Sciences

Chaotic Dynamics

To appear, Phys. Rev. E

Scientific paper

Chimera states occur in networks of coupled oscillators, and are characterized by having some fraction of the oscillators perfectly synchronized, while the remainder are desynchronized. Most chimera states have been observed in networks of phase oscillators with coupling via a sinusoidal function of phase differences, and it is only for such networks that any analysis has been performed. Here we present the first analysis of chimera states in a network of planar oscillators, each of which is described by both an amplitude and a phase. We find that as the attractivity of the underlying periodic orbit is reduced chimeras are destroyed in saddle-node bifurcations, and supercritical Hopf and homoclinic bifurcations of chimeras also occur.

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