Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/12813
Title: Regular wave propagation out of noise in chemical active media
Author: Alonso Muñoz, Sergio
Sendiña Nadal, Irene
Pérez Muñuzuri, Vicente
Sancho, José M.
Sagués i Mestre, Francesc
Keywords: Química física
Física estadística
Dinàmica de fluids
Chemistry, Physical and theoretical
Statistical physics
Fluid dynamics
Issue Date: 2001
Publisher: American Physical Society
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.
Note: Reproducció digital del document proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevLett.87.078302
It is part of: Physical Review Letters, 2001, vol. 87, núm. 7, p. 078302-1-078302-4
URI: http://hdl.handle.net/2445/12813
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Ciència dels Materials i Química Física)
Articles publicats en revistes (Física Quàntica i Astrofísica)

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