Effects of non-resonant interaction in ensembles of phase oscillators

Details Effects of non-resonant interaction in ensembles of phase oscillators Effects of non-resonant interaction in ensembles of phase oscillators

2011-02-07

arxiv.org/abs/1102.1319v1

Nonlinear Sciences

Adaptation and Self-Organizing Systems

21 pages, 7 figs

Scientific paper

We consider general properties of groups of interacting oscillators, for which the natural frequencies are not in resonance. Such groups interact via non-oscillating collective variables like the amplitudes of the order parameters defined for each group. We treat the phase dynamics of the groups using the Ott-Antonsen ansatz and reduce it to a system of coupled equations for the order parameters. We describe different regimes of co-synchrony in the groups. For a large number of groups, heteroclinic cycles, corresponding to a sequental synchronous activity of groups, and chaotic states, where the order parameters oscillate irregularly, are possible.

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