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Title: Intermediate dynamics between Newton and Langevin
Authors: Bao, J.-D.
Zhuo, Y.-Z.
Oliveira, F.A.
Hänggi, P. 
Issue Date: 2006
Citation: Bao, J.-D., Zhuo, Y.-Z., Oliveira, F.A., Hänggi, P. (2006). Intermediate dynamics between Newton and Langevin. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 74 (6) : -. ScholarBank@NUS Repository.
Abstract: A dynamics between Newton and Langevin formalisms is elucidated within the framework of the generalized Langevin equation. For thermal noise yielding a vanishing zero-frequency friction the corresponding non-Markovian Brownian dynamics exhibits anomalous behavior which is characterized by ballistic diffusion and accelerated transport. We also investigate the role of a possible initial correlation between the system degrees of freedom and the heat-bath degrees of freedom for the asymptotic long-time behavior of the system dynamics. As two test beds we investigate (i) the anomalous energy relaxation of free non-Markovian Brownian motion that is driven by a harmonic velocity noise and (ii) the phenomenon of a net directed acceleration in noise-induced transport of an inertial rocking Brownian motor. © 2006 The American Physical Society.
Source Title: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
ISSN: 15393755
DOI: 10.1103/PhysRevE.74.061111
Appears in Collections:Staff Publications

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