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Título : Large-scale emergent properties of an autocatalytic reaction-diffusion model subject to noise
Autor : Hochberg, David, Lesmes, Felipe, Morán, Federico, Pérez-Mercader, Juan
Palabras clave : [PACS] Probability theory, stochastic processes, and statistics
[PACS] Renormalization group methods
[PACS] Noise processes and phenomena
[PACS] Chemical kinetics and dynamics
Fecha de publicación : 24-Dec-2003
Editor: American Physical Society
Citación : Physical Review E 68(6): 066114 (2003)
Resumen: The nonequilibrium dynamic fluctuations of a stochastic version of the Gray-Scott (GS) model are studied analytically in leading order in perturbation theory by means of the dynamic renormalization group. There is an attracting stable fixed point at one-loop order, and the asymptotic scaling of the correlation functions is predicted for both spatial and temporally correlated noise sources. New effective three-body reaction terms, not present in the original GS model, are induced by the combined interplay of the fluctuations and nonlinearities.
Descripción : 10 pages, 3 figures, 2 appendices.-- PACS nrs.: 02.50.-r, 05.10.Cc, 72.70.+m, 82.20.-w.-- ArXiv pre-print available at: http://arxiv.org/abs/0902.1654
Versión del editor: http://dx.doi.org/10.1103/PhysRevE.68.066114
URI : http://hdl.handle.net/10261/15661
ISSN: 1539-3755
DOI: 10.1103/PhysRevE.68.066114
Citación : Physical Review E 68(6): 066114 (2003)
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