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Trapping of active Brownian and run-and-tumble particles: A first-passage time approach
Univ Oslo, Njord Ctr, Dept Phys, N-0316 Oslo, Norway..
Nordita SU; Stockholm Univ, Hannes Alfvens vag 12,23, S-10691 Stockholm, Sweden..
Univ Oslo, Njord Ctr, Dept Phys, N-0316 Oslo, Norway..
Univ Oslo, Njord Ctr, Dept Phys, N-0316 Oslo, Norway..
2022 (English)In: Physical Review Research, E-ISSN 2643-1564, Vol. 4, no 4, article id 043012Article in journal (Refereed) Published
Abstract [en]

We use a first-passage time approach to study the statistics of the trapping times induced by persistent motion of active particles colliding with flat boundaries. The angular first-passage time distribution and mean first-passage time are calculated exactly for active Brownian and run-and-tumble particles, and the results of the two prototypes of active particles are contrasted. Theoretical predictions are in excellent agreement with Langevin simulations of active particle dynamics. Our results shed further light on how active particles with different dynamics may have equivalent statistical properties in the bulk yet behave differently near boundaries or obstacles.

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American Physical Society (APS) , 2022. Vol. 4, no 4, article id 043012
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URN: urn:nbn:se:kth:diva-321984DOI: 10.1103/PhysRevResearch.4.043012ISI: 000876858200003Scopus ID: 2-s2.0-85139726059OAI: oai:DiVA.org:kth-321984DiVA, id: diva2:1714158
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QC 20221129

Available from: 2022-11-29 Created: 2022-11-29 Last updated: 2023-07-24Bibliographically approved

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