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@ARTICLE{Eisenstecken:829813,
author = {Eisenstecken, Thomas and Gompper, Gerhard and Winkler,
Roland G.},
title = {{I}nternal dynamics of semiflexible polymers with active
noise},
journal = {The journal of chemical physics},
volume = {146},
number = {15},
issn = {1089-7690},
address = {Melville, NY},
publisher = {American Institute of Physics},
reportid = {FZJ-2017-03441},
pages = {154903},
year = {2017},
abstract = {The intramolecular dynamics of flexible and semiflexible
polymers in response to active noise is studied
theoretically. The active noise may either originate from
interactions of a passive polymer with a bath of active
Brownian particles or the polymer itself is comprised of
active Brownian particles. We describe the polymer by the
continuous Gaussian semiflexible-polymer model, taking into
account the finite polymer extensibility. Our analytical
calculations predict a strong dependence of the polymer
dynamics on the activity. In particular, active semiflexible
polymers exhibit a crossover from a bending
elasticity-dominated dynamics at weak activity to that of
flexible polymers at strong activity. The end-to-end vector
correlation function decays exponentially for times longer
than the longest polymer relaxation time. Thereby, the
polymer relaxation determines the decay of the correlation
function for long and flexible polymers. For shorter and
stiffer polymers, the relaxation behavior of individual
active Brownian particles dominates the decay above a
certain activity. The diffusive dynamics of a polymer is
substantially enhanced by the activity. Three regimes can be
identified in the mean square displacement for sufficiently
strong activities: an activity-induced ballistic regime at
short times, followed by a Rouse-type polymer-specific
regime for any polymer stiffness, and free diffusion at long
times, again determined by the activity.},
cin = {IAS-2 / ICS-2},
ddc = {540},
cid = {I:(DE-Juel1)IAS-2-20090406 / I:(DE-Juel1)ICS-2-20110106},
pnm = {551 - Functional Macromolecules and Complexes (POF3-551)},
pid = {G:(DE-HGF)POF3-551},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000399904500034},
doi = {10.1063/1.4981012},
url = {https://juser.fz-juelich.de/record/829813},
}