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@INPROCEEDINGS{Dhont:911355,
author = {Dhont, Jan K. G. and Briels, Willem and Park, Gunwoo},
title = {{M}otility-{I}nduced {I}nter-{P}article {C}orrelations and
{D}ynamics:a {M}icroscopic {A}pproach for {A}ctive
{B}rownian {P}articles},
reportid = {FZJ-2022-04647},
year = {2022},
abstract = {Amongst the various theoretical approaches towards dynamics
and phase behaviour of suspensions of active Brownian
particles (ABPs), no attempt has been made to specify
motility-induced inter-particle correlations. In this
presentation, the derivation of explicit expressions for the
pair-correlation function for ABPs for small and large
swimming velocities and low concentrations is discussed. The
pair-correlation function is the solution of a differential
equation that is obtained from the Fokker-Planck equation
for the probability density function of the positions and
orientations of the ABPs, commonly referred to as the
Smoluchowski equation. For large swimming Peclet numbers
, the pair-correlation function is highly asymmetric. The
pair-correlation function attains a large value
within a small region of spatial extent 1/ near
contact of the ABPs when the ABPs approach each other. The
pair-correlation function is small within a large region of
spatial extent 1/3 when the ABPs move apart, with a
contact value that is close to zero. From the explicit
expressions for the pair-correlation function, Fick's
diffusion equation is generalized to include motility. It is
shown that mass transport, in case of large swimming
velocities, is dominated by a preferred swimming direction
that is induced by concentration gradients.},
month = {Oct},
date = {2022-10-18},
organization = {70th Anniversary and 2022 Fall
Meeting, BEXCO Convention Hall, Busan,
South Korea, Online (South Korea), 18
Oct 2022 - 21 Oct 2022},
subtyp = {Plenary/Keynote},
cin = {IBI-4},
cid = {I:(DE-Juel1)IBI-4-20200312},
pnm = {5241 - Molecular Information Processing in Cellular Systems
(POF4-524)},
pid = {G:(DE-HGF)POF4-5241},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/911355},
}