Regular wave propagation out of noise in chemical active media
10.1103/PhysRevLett.87.078302
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Cita com:
hdl:2117/176121
Tipus de documentArticle
Data publicació2001-07-30
EditorAmerican Institute of Physics (AIP)
Condicions d'accésAccés obert
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Abstract
A pacemaker, regularly emitting chemical waves, is created out of noise when an excitable photosensitive Belousov-Zhabotinsky medium, strictly unable to autonomously initiate autowaves, is forced with a spatiotemporal patterned random illumination. These experimental observations are also reproduced numerically by using a set of reaction-diffusion equations for an activator-inhibitor model, and further analytically interpreted in terms of genuine coupling effects arising from parametric fluctuations. Within the same framework we also address situations of noise-sustained propagation in subexcitable media.
CitacióAlonso, S. [et al.]. Regular wave propagation out of noise in chemical active media. "Physical review letters", 30 Juliol 2001, vol. 87, núm. 7, p. 078302-1-078302-4.
ISSN0031-9007
Versió de l'editorhttps://journals.aps.org/prl/abstract/10.1103/PhysRevLett.87.078302
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