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Multiplicative noise effects on relaxations from marginal states
Careta Pons, Agustí; Sagués i Mestre, Francesc
Universitat de Barcelona
Relaxational processes in bistable potentials close to marginal conditions are studied under the combined effect of additive and multiplicative fluctuations. Characteristic time scales associated with the first-passage-time-distribution are analytically obtained. Multiplicative noise introduces large effects on the characteristic decay times, which is particularly significant when relaxations are mediated by fluctuations, i.e., below marginality and for small noise intensity. The relevance of our approach with respect to realistic chemical bistable systems experimentally operated under external noise influences is mentioned.
2010-05-04
Fluctuacions (Física)
Moviment brownià
Fluctuation phenomena
Brownian motion
(c) The American Physical Society, 1991
Article
The American Physical Society
         

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