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

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.

Palabras clave: Fitzhugh-Nagumo , Synchronization , Phase-Repulsive Coupling

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Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial 2.5 Unported (CC BY-NC 2.5)

Identificadores

URI: http://hdl.handle.net/11336/17932

DOI: http://dx.doi.org/10.1140/epjb/e2014-41029-2

URL: http://link.springer.com/article/10.1140%2Fepjb%2Fe2014-41029-2

Colecciones

Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE

Articulos(IFIMAR)
Articulos de INST.DE INVESTIGACIONES FISICAS DE MAR DEL PLATA

Citación

dell'Erba, Matias German; Cascallares, Maria Guadalupe; Sanchez, Alejandro Daniel; Izus, Gonzalo Gregorio; Noise-sustained synchronization in a FitzHugh-Nagumo ring with electrical phase-repulsive coupling; Springer; European Physical Journal B - Condensed Matter; 87; 82; 7-4-2014; 1-7

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