Pulse trains propagating through excitable media subjected to external noise

V. Beato (), H. Engel and L. Schimansky-Geier

The European Physical Journal B: Condensed Matter and Complex Systems, 2007, vol. 58, issue 3, 323-329

Abstract: We study the propagation of periodic pulse trains in excitable media exposed to external spatio-temporal noise using the light-sensitive Belousov-Zhabotinsky reaction with the underlying Oregonator model as representative example. In the weak noise approximation we find noise-induced transitions in the dispersion relation of pulse trains. We discuss noise-enhanced propagation of pulse trains within a certain wave-length range caused by external noise of moderate strength. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Keywords: 05.40.-a Fluctuation phenomena, random processes, noise, and Brownian motion, 82.40.Bj Oscillations, chaos, and bifurcations, 47.54.-r Pattern selection; pattern formation, (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1140/epjb/e2007-00228-x

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