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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/7809
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dc.contributor.authorSantra, Ion-
dc.contributor.authorBasu, Urna-
dc.contributor.authorSabhapandit, Sanjib-
dc.date.accessioned2021-08-10T11:46:47Z-
dc.date.available2021-08-10T11:46:47Z-
dc.date.issued2021-07-
dc.identifier.citationPhysical Review E, 2021, Vol 104, pL012601en_US
dc.identifier.issn2470-0053 (Online)-
dc.identifier.issn2470-0045-
dc.identifier.urihttp://hdl.handle.net/2289/7809-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en_US
dc.description.abstractActive Brownian motion with intermittent direction reversals is common in bacteria like Myxococcus xanthus and Pseudomonas putida. We show that, for such a motion in two dimensions, the presence of the two timescales set by the rotational diffusion constant D-R and the reversal rate gamma gives rise to four distinct dynamical regimes: (I) t << min(gamma(-1), D-R(-1)), (II) gamma(-1) << t << D-R(-1), (III) D-R(-1) << t << gamma(-1), and (IV) t >> max(gamma(-1), D-R(-1)), showing distinct behaviors. We characterize these behaviors by analytically computing the position distribution and persistence exponents. The position distribution shows a crossover from a strongly nondiffusive and anisotropic behavior at short times to a diffusive isotropic behavior via an intermediate regime, II or III. In regime II, we show that, the position distribution along the direction orthogonal to the initial orientation is a function of the scaled variable z alpha x(perpendicular to)/t with a nontrivial scaling function, f (z) = (2 pi(3))(-1/2)Gamma(1/4 + iz)Gamma(1/4 - iz). Furthermore, by computing the exact first-passage time distribution, we show that a persistence exponent alpha = 1 emerges due to the direction reversal in this regime.en_US
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.urihttps://arxiv.org/abs/2101.11327en_US
dc.relation.urihttps://doi.org/10.1103/PhysRevE.104.L012601en_US
dc.relation.urihttps://ui.adsabs.harvard.edu/abs/2021PhRvE.104L2601S/abstracten_US
dc.rights2021 American Physical Societyen_US
dc.titleActive Brownian motion with directional reversalsen_US
dc.typeArticleen_US
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