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@ARTICLE{Narasimhan:18668,
author = {Narasimhan, S.L. and Baumgaertner, A.},
title = {{D}ynamics of a stochastically driven {B}rownian particle
in one dimension},
journal = {Physica / A},
volume = {391},
issn = {0378-4371},
address = {Amsterdam},
publisher = {North Holland Publ. Co.},
reportid = {PreJuSER-18668},
pages = {593 - 605},
year = {2012},
note = {Record converted from VDB: 12.11.2012},
abstract = {We present a study on the dynamics of a system consisting
of a pair of hardcore particles diffusing with different
rates. We solved the drift-diffusion equation for this model
in the case when one particle, labeled F, drifts and
diffuses slowly toward the second particle, labeled M. The
displacements of particle M exhibits a crossover from
diffusion to drift at a characteristic time which depends on
the rate constants. We show that the positional fluctuation
of M exhibits an intermediate crossover regime of
subdiffusion separating initial and asymptotic diffusive
behavior; this is in agreement with the complete set of
Master Equations that describe the stochastic evolution of
the model. The intermediate crossover regime can be
considerably large depending on the hopping probabilities of
the two particles. This is in contrast to the known
crossover from diffusive to subdiffusive behavior of a
tagged particle that is in the interior of a large
single-file system on an unbound real line. We discuss our
model with respect to the biological phenomena of membrane
protrusions, where polymerizing actin filaments (F) push the
cell membrane (M). (C) 2011 Elsevier B.V. All rights
reserved.},
keywords = {J (WoSType)},
cin = {ICS-2},
ddc = {500},
cid = {I:(DE-Juel1)ICS-2-20110106},
pnm = {BioSoft: Makromolekulare Systeme und biologische
Informationsverarbeitung},
pid = {G:(DE-Juel1)FUEK505},
shelfmark = {Physics, Multidisciplinary},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000297779500018},
doi = {10.1016/j.physa.2011.08.016},
url = {https://juser.fz-juelich.de/record/18668},
}