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.
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dell’Erba, M.G., Cascallares, G., Sánchez, A.D. et al. Noise-sustained synchronization in a FitzHugh-Nagumo ring with electrical phase-repulsive coupling. Eur. Phys. J. B 87, 82 (2014). https://doi.org/10.1140/epjb/e2014-41029-2
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DOI: https://doi.org/10.1140/epjb/e2014-41029-2