Noise-sustained synchronization in a FitzHugh-Nagumo ring with electrical phase-repulsive coupling

Matías dell’Erba (), Guadalupe Cascallares, Alejandro Sánchez and Gonzalo Izús

The European Physical Journal B: Condensed Matter and Complex Systems, 2014, vol. 87, issue 4, 1-7

Abstract: We study the dynamical response under local noise of an excitable ring of FitzHugh-Nagumo units coupled through nearest-neighbor phase-repulsive electric synapses. The system is externally, adiabatically driven by a weak subthreshold periodic signal and independent Gaussian white noises. By varying the coupling strength and the noise intensity, two routes to noise-sustained synchronization are numerically observed and elucidated in terms of the system’s non-equilibrium potential. In particular, the threshold noise intensity for synchronization is theoretically predicted and numerically confirmed. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2014

Keywords: Statistical and Nonlinear Physics (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1140/epjb/e2014-41029-2

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