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Excitability transitions and wave dynamics under spatiotemporal structured noise
Alonso Muñoz, Sergio; Sancho, José M.; Sagués i Mestre, Francesc
Universitat de Barcelona
We present an analytic and numerical study of the effects of external fluctuations in active media. Our analytical methodology transforms the initial stochastic partial differential equations into an effective set of deterministic reaction-diffusion equations. As a result we are able to explain and make quantitative predictions on the systematic and constructive effects of the noise, for example, target patterns created out of noise and traveling or spiral waves sustained by noise. Our study includes the case of realistic noises with temporal and spatial structures.
2011-07-26
Física estadística
Termodinàmica
Sistemes dinàmics diferenciables
Química física
Dinàmica de fluids
Statistical physics
Thermodynamics
Differentiable dynamical systems
Physical chemistry
Fluid dynamics
(c) The American Physical Society, 2002
Article
The American Physical Society
         

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