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EPL Association, European Physical Society Letters, 2023

DOI: 10.1209/0295-5075/acc96a

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Noisy pursuit by a self-steering active particle in confinement <sup>(a)</sup>

Journal article published in 2023 by Marielle Gassner ORCID, Segun Goh ORCID, Gerhard Gompper ORCID, Roland G. Winkler ORCID
Distributing this paper is prohibited by the publisher
Distributing this paper is prohibited by the publisher

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Abstract

Abstract The properties of a cognitive, self-propelled, and self-steering particle in the presence of a stationary target are analyzed theoretically and by simulations. In particular, the effects of confinement in competition with activity and steering are addressed. The pursuer is described as an intelligent active Ornstein-Uhlenbeck particle (iAOUP), confined in a harmonic potential. For the free pursuer, we find universal scaling regimes for the pursuer-target distance in terms of the Peclet number and maneuverability. Steering results in a novel constant mean-distance regime, which broadens with increasing maneuverability. Confinement strongly affects the propulsion direction and leads to a scaling at large Peclet numbers similar to that in absence of confinement, yet with a pronounced dependence on confinement strength.