TY - JOUR
T1 - Multiple peaks in the displacement distribution of active random walkers
AU - Teomy, Eial
AU - Roichman, Yael
AU - Shokef, Yair
N1 - Publisher Copyright:
© 2019 IOP Publishing Ltd and SISSA Medialab srl.
PY - 2019/11/22
Y1 - 2019/11/22
N2 - We consider a simple model for active random walk with general temporal correlations, and investigate the shape of the probability distribution function of the displacement during a short time interval. We find that under certain conditions the distribution exhibits multiple peaks and we show analytically and numerically that the existence of these peaks is governed by the walker's tendency to move forward, while the correlations between the timing of its active motion control the magnitude and shape of the peaks. In particular, we find that in a homogeneous system such peaks can occur only if the persistence is strong enough.
AB - We consider a simple model for active random walk with general temporal correlations, and investigate the shape of the probability distribution function of the displacement during a short time interval. We find that under certain conditions the distribution exhibits multiple peaks and we show analytically and numerically that the existence of these peaks is governed by the walker's tendency to move forward, while the correlations between the timing of its active motion control the magnitude and shape of the peaks. In particular, we find that in a homogeneous system such peaks can occur only if the persistence is strong enough.
KW - active matter
KW - stochastic particle dynamics
UR - http://www.scopus.com/inward/record.url?scp=85079860293&partnerID=8YFLogxK
U2 - 10.1088/1742-5468/ab4fde
DO - 10.1088/1742-5468/ab4fde
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AN - SCOPUS:85079860293
SN - 1742-5468
VL - 2019
JO - Journal of Statistical Mechanics: Theory and Experiment
JF - Journal of Statistical Mechanics: Theory and Experiment
IS - 11
M1 - 113209
ER -