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@ARTICLE{Eisenstecken:907776,
author = {Eisenstecken, Thomas and Winkler, Roland G.},
title = {{P}ath integral description of semiflexible active
{B}rownian polymers},
journal = {The journal of chemical physics},
volume = {156},
number = {6},
issn = {0021-9606},
address = {Melville, NY},
publisher = {American Institute of Physics},
reportid = {FZJ-2022-02205},
pages = {064105},
year = {2022},
abstract = {Semiflexible polymers comprised of active Brownian
particles (ABPOs) exhibit intriguing activity-driven
conformational and dynamical features. Analytically, the
generic properties of ABPOs can be obtained in a mean-field
description applying the Gaussian semiflexi- ble polymer
model. In this article, we derive a path integral
representation of the stationary-state distribution function
of such ABPOs, based on the stationary-state distribution
function of the normal mode amplitudes following from the
Langevin equation of motion. The path integral includes
characteristic semiflexible polymer contributions from
entropy and bending energy, with activity depen- dent
coefficients, and, in addition, activity-induced torsional
and higher order correlations along the polymer contour.
Focusing on a semiflexible polymer approximation, we
determine various properties such as the tangent-vector
correlation function, effective persis- tence length, and
the mean-square end-to-end distance. The latter reflects the
characteristic features of ABPOs, and good quantitative
agreement is obtained with the full solution for larger
activities, specifically for flexible polymers. Moreover,
the approximation indi- cates the relevance of torsional and
higher order contour correlations for the ABPO
conformations. In general, the ABPO path integral
illustrates how colored noise (active fluctuations) affects
semiflexible polymer conformations in comparison to white
noise thermal fluctuations.},
cin = {IAS-2 / IBI-5 / JARA-SOFT},
ddc = {530},
cid = {I:(DE-Juel1)IAS-2-20090406 / I:(DE-Juel1)IBI-5-20200312 /
$I:(DE-82)080008_20150909$},
pnm = {5243 - Information Processing in Distributed Systems
(POF4-524)},
pid = {G:(DE-HGF)POF4-5243},
typ = {PUB:(DE-HGF)16},
pubmed = {35168354},
UT = {WOS:000760765700007},
doi = {10.1063/5.0081020},
url = {https://juser.fz-juelich.de/record/907776},
}