Title:	Active Brownian Motion in Two Dimensions
Authors:	Basu, Urna Majumdar, Satya N. Rosso, Alberto Schehr, Gregory
Issue Date:	14-Dec-2018
Publisher:	American Physical Society
Citation:	Physical. Review. E , 2018, vol .98; p062121
Abstract:	We study the dynamics of a single active Brownian particle (ABP) in two spatial dimensions. The ABP has an intrinsic timescale D−1R set by the rotational diffusion constant DR. We show that, at short times t≪D−1R, the presence of “activeness” results in a strongly anisotropic and nondiffusive dynamics in the (xy) plane. Wecompute exactly the marginal distributions of the x and y position coordinates along with the radial distribution, which are all shown to be non-Brownian. In addition, we show that, at early times, the ABP has anomalous first-passage properties, characterized by non-Brownian exponents.
Description:	Open Access
URI:	http://hdl.handle.net/2289/7109
ISSN:	2470-0045 (print)
Alternative Location:	https://arxiv.org/abs/1804.09027 https://doi.org/10.1103/PhysRevE.98.062121
Copyright:	©2018 American Physical Society
Appears in Collections:	Research Papers (TP)

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