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Title: Brownian motion of spiral waves driven by spatiotemporal structured noise
Author: Sendiña Nadal, Irene
Alonso Muñoz, Sergio
Pérez Muñuzuri, Vicente
Gómez-Gesteira, M.
Pérez Villar, Vicente
Ramírez Piscina, Laureano
Casademunt i Viader, Jaume
Sancho, José M.
Sagués i Mestre, Francesc
Keywords: Química física
Dinàmica de fluids
Física estadística
Physical chemistry
Statistical physics
Fluid dynamics
Issue Date: 2000
Publisher: American Physical Society
Abstract: Spiral chemical waves subjected to a spatiotemporal random excitability are experimentally and numerically investigated in relation to the light-sensitive Belousov-Zhabotinsky reaction. Brownian motion is identified and characterized by an effective diffusion coefficient which shows a rather complex dependence on the time and length scales of the noise relative to those of the spiral. A kinematically based model is proposed whose results are in good qualitative agreement with experiments and numerics.
Note: Reproducció digital del document publicat en format paper, proporcionada per APS i
It is part of: Physical Review Letters, 2000, vol. 84, núm. 12, p. 2734-2737
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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