Títol:
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External fluctuations in front propagation
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Autor/a:
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Armero Rovira, J.; Sancho, Jose Maria; Casademunt, Jaume; Lacasta Palacio, Ana María; Ramírez de la Piscina Millán, Laureano; Sagués Mestre, Francesc
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Altres autors:
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Universitat Politècnica de Catalunya. Departament de Física Aplicada; Universitat Politècnica de Catalunya. NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri |
Abstract:
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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:
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Peer Reviewed |
Matèries:
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-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 |
Drets:
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Tipus de document:
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Article - Esborrany Article |
Publicat per:
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American Physical Society
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