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Ballistic and diffusive corrections to front propagation in the presence of multiplicative noise
Armero Rovira, Juan; Casademunt i Viader, Jaume; Ramírez Piscina, Laureano; Sancho, José M.
Universitat de Barcelona
We study the dynamics of reaction-diffusion fronts under the influence of multiplicative noise. An approximate theoretical scheme is introduced to compute the velocity of the front and its diffusive wandering due to the presence of noise. The theoretical approach is based on a multiple scale analysis rather than on a small noise expansion and is confirmed with numerical simulations for a wide range of the noise intensity. We report on the possibility of noise sustained solutions with a continuum of possible velocities, in situations where only a single velocity is allowed without noise.
26-07-2011
Teoria quàntica
Teoria quàntica de camps
Relativitat especial (Física)
Dinàmica de fluids
Quantum theory
Quantum field theory
Special relativity (Physics)
Fluid dynamics
(c) The American Physical Society, 1998
Artículo
The American Physical Society
         

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Armero Rovira, Juan; Sancho, José M.; Casademunt i Viader, Jaume; Lacasta Palacio, Ana María; Ramírez Piscina, Laureano; Sagués i Mestre, Francesc
Armero Rovira, Juan; Lacasta Palacio, Ana María; Ramírez Piscina, Laureano; Casademunt i Viader, Jaume; Sancho, José M.; Sagués i Mestre, Francesc
Sendiña Nadal, Irene; Gómez-Gesteira, Moncho; Pérez-Muñuzurri, Vicente; Pérez Villar, Vicente; Armero Rovira, Juan; Ramírez Piscina, Laureano; Casademunt i Viader, Jaume; Sagués i Mestre, Francesc; Sancho, José M.
Armero Rovira, Juan; Lacasta Palacio, Ana María; Ramírez Piscina, Laureano; Casademunt i Viader, Jaume; Sancho, José M.; Sagués i Mestre, Francesc
Sendiña Nadal, Irene; Gómez-Gesteira, Moncho; Pérez-Muñuzurri, Vicente; Pérez Villar, Vicente; Armero Rovira, Juan; Ramírez Piscina, Laureano; Casademunt i Viader, Jaume; Sagués i Mestre, Francesc; Sancho, José M.
 

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