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Relaxation times of non-Markovian processes
Casademunt i Viader, Jaume; Mannella, R.; McClintock, P. V. E.; Moss, Frank, 1934-; Sancho, José M.
Universitat de Barcelona
We consider a general class of non-Markovian processes defined by stochastic differential equations with Ornstein-Uhlenbeck noise. We present a general formalism to evaluate relaxation times associated with correlation functions in the steady state. This formalism is a generalization of a previous approach for Markovian processes. The theoretical results are shown to be in satisfactory agreement both with experimental data for a cubic bistable system and also with a computer simulation of the Stratonovich model. We comment on the dynamical role of the non-Markovianicity in different situations.
2010-05-04
Fluctuacions (Física)
Soroll
Processos estocàstics
Fluctuations (Physics)
Noise
Stochastic processes
(c) The American Physical Society, 1987
Article
The American Physical Society
         

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