Títol:
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Theory for correlation functions of processes driven by external colored noise
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Autor/a:
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Hernández Machado, Aurora; Casademunt i Viader, Jaume; Rodríguez Díaz, Miguel Ángel; Pesquera, L.; Noriega, J. M.
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Altres autors:
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Universitat de Barcelona |
Abstract:
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We study steady-state correlation functions of nonlinear stochastic processes driven by external colored noise. We present a methodology that provides explicit expressions of correlation functions approximating simultaneously short- and long-time regimes. The non-Markov nature is reduced to an effective Markovian formulation, and the nonlinearities are treated systematically by means of double expansions in high and low frequencies. We also derive some exact expressions for the coefficients of these expansions for arbitrary noise by means of a generalization of projection-operator techniques. |
Matèries:
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-Fluctuacions (Física) -Processos estocàstics -Fluctuations (Physics) -Stochastic processes |
Drets:
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(c) The American Physical Society, 1991
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Tipus de document:
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Article Article - Versió publicada |
Publicat per:
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The American Physical Society
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