Quantum teleportation of a photon via absorption and emission for quantum repeater nodes

Quantum teleportation of a photon via absorption and emission for quantum repeater nodes | 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 Quantum teleportation of a photon via absorption and emission for quantum repeater nodes Raustin Reyes, Yuhei Sekiguchi, Daisuke Ito, Taichi Fujiwara, and 4 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5928658/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 28 Dec, 2025 Read the published version in npj Quantum Information → Version 1 posted 10 You are reading this latest preprint version Abstract Absorption and emission, fundamental interactions between light and matter, enable the regeneration of a quantum state of light via matter through concatenated quantum state transfer based on the principle of quantum teleportation. This transfer is enabled by electron spin‒orbit entanglement and electron‒nuclear spin entanglement inherent within the material. Here, we demonstrate that a photon quantum state imprinted in polarization is transferred to another photon emitted from a nitrogen vacancy (NV) center. This transfer is heralded by the result of the Bell state measurement between the electron and nitrogen nuclear spins. We show that the minimum number of incident photons needed to achieve transfer is, on average, only 0.1 photons, enabling quantum teleportation over 10 km. This demonstration paves the way for a fault-tolerant quantum repeater that is robust against phase and intensity errors, unlike the conventional photon interference scheme, thereby facilitating practical quantum networks. Physical sciences/Physics/Quantum physics/Quantum information Physical sciences/Physics/Quantum physics/Qubits Physical sciences/Physics/Quantum physics/Single photons and quantum effects Full Text Additional Declarations No competing interests reported. Supplementary Files RepeaterDemoSupplementaryrr04NatPhoto1st.pdf Cite Share Download PDF Status: Published Journal Publication published 28 Dec, 2025 Read the published version in npj Quantum Information → Version 1 posted Editorial decision: Revision requested 21 Jul, 2025 Reviews received at journal 15 Jul, 2025 Reviewers agreed at journal 09 Jul, 2025 Reviews received at journal 16 Apr, 2025 Reviewers agreed at journal 21 Mar, 2025 Reviewers agreed at journal 20 Feb, 2025 Reviewers invited by journal 12 Feb, 2025 Editor assigned by journal 31 Jan, 2025 Submission checks completed at journal 31 Jan, 2025 First submitted to journal 30 Jan, 2025 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. 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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-5928658","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":410727598,"identity":"18a01040-e8f9-4eac-9c81-b0af88b998a3","order_by":0,"name":"Raustin Reyes","email":"","orcid":"","institution":"Yokohama National University","correspondingAuthor":false,"prefix":"","firstName":"Raustin","middleName":"","lastName":"Reyes","suffix":""},{"id":410727599,"identity":"81cf0bfc-ab45-46f8-a390-d19a93fffae4","order_by":1,"name":"Yuhei Sekiguchi","email":"","orcid":"","institution":"Yokohama National 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