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https://hdl.handle.net/2445/18788
Title: | Second-order dichotomous processes: damped free motion, critical behavior and anomalous superdifussion |
Author: | Masoliver, Jaume, 1951- |
Keywords: | Física estadística Termodinàmica Física matemàtica Statistical physics Thermodynamics Mathematical physics |
Issue Date: | 1993 |
Publisher: | The American Physical Society |
Abstract: | We study damped inertial processes driven by dichotomous Markov noise in the absence of a potential. We obtain exact differential equations for the joint probability density and for the marginal densities of velocity and position. Several aspects of the critical behavior of the system are examined in detail. The exact equation for the displacement of a free Brovnian particle is also found, and from this equation we study the damping effects on the mean-square displacement (X 2 (t)>, by evaluating the dynamical exponent and shoving a crossover from a superdiffusive motion of the form (X 2 (t)> ∼t 3 to ordinary diffusion where (X 2 (t)>∼t |
Note: | Reproducció del document publicat a: http://10.1103/PhysRevE.48.121 |
It is part of: | Physical Review E, 1993, vol. 48, núm. 1, p. 121-135 |
URI: | https://hdl.handle.net/2445/18788 |
ISSN: | 1063-651X |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
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