Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/7809
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Santra, Ion | - |
dc.contributor.author | Basu, Urna | - |
dc.contributor.author | Sabhapandit, Sanjib | - |
dc.date.accessioned | 2021-08-10T11:46:47Z | - |
dc.date.available | 2021-08-10T11:46:47Z | - |
dc.date.issued | 2021-07 | - |
dc.identifier.citation | Physical Review E, 2021, Vol 104, pL012601 | en_US |
dc.identifier.issn | 2470-0053 (Online) | - |
dc.identifier.issn | 2470-0045 | - |
dc.identifier.uri | http://hdl.handle.net/2289/7809 | - |
dc.description | Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations) | en_US |
dc.description.abstract | Active 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.iso | en | en_US |
dc.publisher | American Physical Society | en_US |
dc.relation.uri | https://arxiv.org/abs/2101.11327 | en_US |
dc.relation.uri | https://doi.org/10.1103/PhysRevE.104.L012601 | en_US |
dc.relation.uri | https://ui.adsabs.harvard.edu/abs/2021PhRvE.104L2601S/abstract | en_US |
dc.rights | 2021 American Physical Society | en_US |
dc.title | Active Brownian motion with directional reversals | en_US |
dc.type | Article | en_US |
Appears in Collections: | Research Papers (TP) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2021_PhysRevE_Vol._104_pL012601.pdf Restricted Access | Restricted Access | 698.8 kB | Adobe PDF | View/Open Request a copy |
2021_PhysRevE_Vol._104_pL012601_supplemental_material.pdf Restricted Access | Restricted Access | 971.06 kB | Adobe PDF | View/Open Request a copy |
Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.