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Título:	External fluctuations in front propagation
Autor/a:	Armero Rovira, J.; Sancho, Jose Maria; Casademunt, Jaume; Lacasta Palacio, Ana María; Ramírez de la Piscina Millán, Laureano; Sagués Mestre, Francesc
Otros autores:	Universitat Politècnica de Catalunya. Departament de Física Aplicada; Universitat Politècnica de Catalunya. NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri
Abstract:	We study the effects of external noise in a one-dimensional model of front propagation. Noise is introduced through the fluctuations of a control parameter leading to a multiplicative stochastic partial differential equation. Analytical and numerical results for the front shape and velocity are presented. The linear-marginal-stability theory is found to increase its range of validity in the presence of external noise. As a consequence noise can stabilize fronts not allowed by the deterministic equation
Abstract:	Peer Reviewed
Materia(s):	-Àrees temàtiques de la UPC::Física -Quantum theory -Fluid dynamics -Reaction-diffusion equations -Fronts -Fluctuations -Multiplicative noise -Langevin equation -Digital simulation -Teoria quàntica -Dinàmica de fluids
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Tipo de documento:	Artículo - Borrador Artículo
Editor:	American Physical Society
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