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Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Dec;78(6 Pt 2):066220. Epub 2008 Dec 29.

Averaging approach to phase coherence of uncoupled limit-cycle oscillators receiving common random impulses.

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1
Department of Physics, Kyoto University, Kyoto 606-8502, Japan. arai@ton.scphys.kyoto-u.ac.jp

Abstract

Populations of uncoupled limit-cycle oscillators receiving common random impulses show various types of phase-coherent states, which are characterized by the distribution of phase differences between pairs of oscillators. We develop a theory to predict the stationary distribution of pairwise phase differences from the phase response curve, which quantitatively encapsulates the oscillator dynamics, via averaging of the Frobenius-Perron equation describing the impulse-driven oscillators. The validity of our theory is confirmed by direct numerical simulations using the FitzHugh-Nagumo neural oscillator receiving common Poisson impulses as an example.

PMID:
19256938
DOI:
10.1103/PhysRevE.78.066220
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