Title:
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Generalized Langevin equations: Anomalous diffusion and probability distributions
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Author:
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Porrà i Rovira, Josep Maria; Wang, Ke-Gang; Masoliver, Jaume, 1951-
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Other authors:
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Universitat de Barcelona |
Abstract:
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We study the motion of a particle governed by a generalized Langevin equation. We show that, when no fluctuation-dissipation relation holds, the long-time behavior of the particle may be from stationary to superdiffusive, along with subdiffusive and diffusive. When the random force is Gaussian, we derive the exact equations for the joint and marginal probability density functions for the position and velocity of the particle and find their solutions. |
Subject(s):
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-Física matemàtica -Física estadística -Termodinàmica -Soroll -Mathematical physics -Statistical physics -Thermodynamics -Noise |
Rights:
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(c) American Physical Society, 1996
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society
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