System size coherence resonance

Details System size coherence resonance System size coherence resonance

2002-07-23

arxiv.org/abs/cond-mat/0207553v1

Physics

Condensed Matter

6 pages, 4 figures

Scientific paper

We show the existence of a system size coherence resonance effect for an ensemble of globally coupled excitable systems. Namely, we demonstrate numerically that the regularity in the signal emitted by an ensemble of globally coupled Fitzhugh-Nagumo systems, under excitation by independent noise sources, is optimal for a particular value of the number of coupled systems. This resonance is shown through several different dynamical measures: the time correlation function, correlation time and jitter.

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