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

Author

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  • Matías dell’Erba
  • Guadalupe Cascallares
  • Alejandro Sánchez
  • Gonzalo Izús

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

Suggested Citation

  • Matías dell’Erba & Guadalupe Cascallares & Alejandro Sánchez & Gonzalo Izús, 2014. "Noise-sustained synchronization in a FitzHugh-Nagumo ring with electrical phase-repulsive coupling," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 87(4), pages 1-7, April.
    • Handle: RePEc:spr:eurphb:v:87:y:2014:i:4:p:1-7:10.1140/epjb/e2014-41029-2
    DOI: 10.1140/epjb/e2014-41029-2
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    Statistical and Nonlinear Physics;

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