Stochastic resonance in an extended FitzHugh–Nagumo system: The role of selective coupling

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 01 Jan 2007Embargo end date: 01 Jan 2006 Spain English Publisher:Elsevier BVJournal:Physica A: Statistical Mechanics and its Applications, volume 374, pages 46-54 (issn: 0378-4371,

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Authors: Tessone, Claudio J.; Wio, Horacio S.;

doi: 10.1016/j.physa.2006.06.026 , 10.48550/arxiv.cond-mat/0607689

arXiv: cond-mat/0607689

handle: 10261/6135

Stochastic resonance in an extended FitzHugh–Nagumo system: The role of selective coupling

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Abstract

Here we present a study of stochastic resonance in an extended FitzHugh-Nagumo system with a field dependent activator diffusion. We show that the system response (here measured through the output signal-to-noise ratio) is enhanced due to the particular form of the non-homogeneous coupling. Such a result supports previous ones obtained in a simpler scalar reaction-diffusion system and shows that such an enhancement, induced by the field dependent diffusion -or selective coupling-, is a robust phenomenon.

14 pages, 19 figures

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Spain

Related Organizations

Institute of Physics of Cantabria
Spain
University of the Balearic Islands (UIB)
Spain
Spanish National Research Council
Spain
University of the Balearic Islands
Spain
University of Cantabria
Spain

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Keywords

Spatially-extended systems, Statistical Mechanics (cond-mat.stat-mech), Field dependent diffusion, Soft Condensed Matter (cond-mat.soft), FOS: Physical sciences, Condensed Matter - Soft Condensed Matter, Condensed Matter - Statistical Mechanics, Stochastic resonance

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