Active particles in a tube: a generalized entropy potential approach

[2111.06156] Active particles in a tube: a generalized entropy potential approach Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search Condensed Matter > Soft Condensed Matter arXiv:2111.06156 (cond-mat) [Submitted on 11 Nov 2021 ( v1 ), last revised 10 Jun 2024 (this version, v3)] Title: Active particles in a tube: a generalized entropy potential approach Authors: Yongfeng Zhao View a PDF of the paper titled Active particles in a tube: a generalized entropy potential approach, by Yongfeng Zhao View PDF HTML (experimental) Abstract: We study the transport of self-propelled noninteracting active Brownian particles (ABPs) and run-and-tumble particles (RTPs) in long tubes of varying widths. Using a moment expansion, we construct a generalized Fick-Jacobs framework for the active particles when the tube width is large and slowly varying. We show that the variation of the particle density along the tube is well described by a one-dimensional generalized entropy potential. This potential resembles its passive counterpart, albeit with an effective temperature and an effective tube width that are renormalized by the activity. Our generalized entropy potential approach allows us to predict the steady-state density distribution along the tube as well as the mean escape time out of a spindle chamber. Finally, we show how to account for the emergence of spontaneous ratchet flows in asymmetric channel by including higher-order corrections neglected in the effective entropy potential approach. Comments: 11 pages, 7 figures Subjects: Soft Condensed Matter (cond-mat.soft) Cite as: arXiv:2111.06156 [cond-mat.soft] (or arXiv:2111.06156v3 [cond-mat.soft] for this version) https://doi.org/10.48550/arXiv.2111.06156 Focus to learn more arXiv-issued DOI via DataCite Journal reference: Phys. Rev. Research 7, 013015 (2025) Related DOI : https://doi.org/10.1103/PhysRevResearch.7.013015 Focus to learn more DOI(s) linking to related resources Submission history From: Yongfeng Zhao [ view email ] [v1] Thu, 11 Nov 2021 11:35:01 UTC (1,391 KB) [v2] Fri, 1 Jul 2022 05:35:21 UTC (1,142 KB) [v3] Mon, 10 Jun 2024 14:56:26 UTC (1,571 KB) Full-text links: Access Paper: View a PDF of the paper titled Active particles in a tube: a generalized entropy potential approach, by Yongfeng Zhao View PDF HTML (experimental) TeX Source view license Current browse context: cond-mat.soft < prev | next > new | recent | 2021-11 Change to browse by: cond-mat References & Citations NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer ( What is the Explorer? ) Connected Papers Toggle Connected Papers ( What is Connected Papers? ) Litmaps Toggle Litmaps ( What is Litmaps? ) scite.ai Toggle scite Smart Citations ( What are Smart Citations? ) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) IArxiv recommender toggle IArxiv Recommender ( What is IArxiv? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs . Which authors of this paper are endorsers? | Disable MathJax ( What is MathJax? ) We gratefully acknowledge support from our major funders , member institutions , , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab) Major funding support from

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