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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.
Teoria quàntica de camps
Relativitat especial (Física)
Dinàmica de fluids
Quantum field theory
Special relativity (Physics)
|The American Physical Society
|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.
|Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.58.5494
|It is part of:
|Physical Review E, 1998, vol. 58, p. 5494-5500
|Appears in Collections:
|Articles publicats en revistes (Física Quàntica i Astrofísica)
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