Observation of suppressed viscosity in the normal state of 3He due to superfluid fluctuations

Observation of suppressed viscosity in the normal state of 3He due to superfluid fluctuations | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Observation of suppressed viscosity in the normal state of 3 He due to superfluid fluctuations Rakin Baten, Yefan Tian, Eric Smith, Erich Mueller, Jeevak Parpia This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-2557408/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 20 Sep, 2023 Read the published version in Nature Communications → Version 1 posted You are reading this latest preprint version Abstract By monitoring the quality factor of a quartz tuning fork oscillator we have observed a fluctuationd-driven reduction in the viscosity of bulk 3 He in the normal state near the superfluid transition temperature, T c . These fluctuations, which are only found within 100 μK of T c , play a vital role in the theoretical modeling of ordering; they encode details about the Fermi liquid parameters, pairing symmetry, and scattering phase shifts. They will be of crucial importance for transport probes of the topologically nontrivial features of superfluid 3 He under strong confinement. We characterize the temperature and pressure dependence of the fluctuation signature, finding a remarkable collapse. Physical sciences/Physics/Condensed-matter physics/Quantum fluids and solids Physical sciences/Physics/Condensed-matter physics/Superconducting properties and materials Physical sciences/Physics/Condensed-matter physics/Topological matter Physical sciences/Physics/Condensed-matter physics/Phase transitions and critical phenomena Full Text Additional Declarations There is NO Competing Interest. Supplementary Files Supplementary.pdf Cite Share Download PDF Status: Published Journal Publication published 20 Sep, 2023 Read the published version in Nature Communications → Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-2557408","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":186817869,"identity":"455fb60c-558b-4c2a-b029-476a8688d907","order_by":0,"name":"Rakin Baten","email":"","orcid":"https://orcid.org/0000-0003-3291-6569","institution":"Cornell University","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Rakin","middleName":"","lastName":"Baten","suffix":""},{"id":186817870,"identity":"9bdbc7d4-fb5f-4ce4-bc01-00a5c0b057dd","order_by":1,"name":"Yefan Tian","email":"","orcid":"","institution":"Cornell 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