Langevin Dynamics with Space-Time Periodic Nonequilibrium Forcing
Langevin Dynamics with Space-Time Periodic Nonequilibrium Forcing
复制标题
具有时空周期性非平衡强迫的朗之万动力学
DOI:
10.1007/s10955-014-1118-4
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发表时间:
2014
影响因子:
1.6
通讯作者:
Joubaud R
中科院分区:
文献类型:
--
作者:
Joubaud R
We present results on the ballistic and diffusive behavior of the Langevin dynamics in a periodic potential that is driven away from equilibrium by a space-time periodic driving force, extending some of the results obtained by Collet and Martinez in (J Math Biol, 56(6):765–792 2008). In the hyperbolic scaling, a nontrivial average velocity can be observed even if the external forcing vanishes in average. More surprisingly, an average velocity in the direction opposite to the forcing may develop at the linear response level—a phenomenon called negative mobility. The diffusive limit of the non-equilibrium Langevin dynamics is also studied using the general methodology of central limit theorems for additive functionals of Markov processes. To apply this methodology, which is based on the study of appropriate Poisson equations, we extend recent results on pointwise estimates of the resolvent of the generator associated with the Langevin dynamics. Our theoretical results are illustrated by numerical simulations of a two-dimensional system.
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影响因子:
1.8
作者:
S. Herrmann;P. Imkeller
通讯作者:
P. Imkeller
DOI:
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发表时间:
2010
期刊:
影响因子:
--
作者:
G. Pavliotis
通讯作者:
G. Pavliotis
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
Reinhard Höpfner;Yury Kutoyants
通讯作者:
Yury Kutoyants
DOI:
10.1137/110836237
发表时间:
2011
期刊:
Multiscale Model. Simul.
影响因子:
--
作者:
R. Joubaud;G. Stoltz
通讯作者:
G. Stoltz
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
T. Komorowski;C. Landim;S. Olla
通讯作者:
S. Olla