Fluctuating Diffusivity Emerges even in Binary Gas Mixtures

[2207.05424] Fluctuating Diffusivity Emerges even in Binary Gas Mixtures Skip to main content Search Submit Donate Log in Condensed Matter > Statistical Mechanics arXiv:2207.05424 (cond-mat) [Submitted on 12 Jul 2022 ( v1 ), last revised 5 Jan 2023 (this version, v2)] Title: Fluctuating Diffusivity Emerges even in Binary Gas Mixtures Authors: Fumiaki Nakai , Yuichi Masubuchi , Yuya Doi , Takato Ishida , Takashi Uneyama View PDF HTML (experimental) Abstract: Diffusivity in some soft matter and biological systems changes with time, called the fluctuating diffusivity. In this work, we propose a novel origin for fluctuating diffusivity based on stochastic simulations of binary gas mixtures. In this system, the fraction of one component is significantly small, and the mass of the minor component molecule is different from that of the major component. The minor component exhibits fluctuating diffusivity when its mass is sufficiently smaller than that of the major component. We elucidate that this fluctuating diffusivity is caused by the time scale separation between the relaxation of the velocity direction and the speed of the minor component molecule. Comments: 20 pages, 12 figures Subjects: Statistical Mechanics (cond-mat.stat-mech) ; Soft Condensed Matter (cond-mat.soft) Cite as: arXiv:2207.05424 [cond-mat.stat-mech] (or arXiv:2207.05424v2 [cond-mat.stat-mech] for this version) https://doi.org/10.48550/arXiv.2207.05424 Focus to learn more arXiv-issued DOI via DataCite Journal reference: Phys. Rev. E 107, 014605 (2023) Related DOI : https://doi.org/10.1103/PhysRevE.107.014605 Focus to learn more DOI(s) linking to related resources Submission history From: Fumiaki Nakai [ view email ] [v1] Tue, 12 Jul 2022 09:36:16 UTC (1,716 KB) [v2] Thu, 5 Jan 2023 05:07:37 UTC (2,069 KB) Full-text links: Access Paper: View PDF HTML (experimental) TeX Source view license Current browse context: cond-mat.stat-mech < prev | next > new | recent | 2022-07 Change to browse by: cond-mat cond-mat.soft References & Citations NASA ADS Google Scholar Semantic Scholar export BibTeX citation 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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