Direct telecom network between atomic and solid-state quantum nodes

Quantum Physics arXiv:2602.02653 (quant-ph) [Submitted on 2 Feb 2026] Title:Direct telecom network between atomic and solid-state quantum nodes Authors:Yuzhou Chai, Dahlia Ghoshal, Nayana P. Tiwari, Alexander Kolar, Benjamin Pingault, Hannes Bernien, Tian Zhong View a PDF of the paper titled Direct telecom network between atomic and solid-state quantum nodes, by Yuzhou Chai and 6 other authors View PDF HTML (experimental) Abstract:Future quantum networks will interconnect quantum systems with distinct functionalities, ideally over long distances via low-loss telecom optical fibers. Here, we realize a two-node hybrid network that directly connects an atomic single photon source to a solid-state quantum memory in the telecom C-band without the need of frequency conversion and external filtering. Both nodes exhibit state-of-the-art performance at 1530 nm: the source achieves a heralded auto-$g^{(2)}(0)$ = 0.031 at a photon rate of 46 kcps, and the memory a storage efficiency of 10.6% with high multimode capacity. We leverage the intrinsic tunability of both nodes to optimize spectral matching, enabling direct networking between the two: single-photon storage and retrieval for 1 $\mu$s over up to 37 temporal modes across extended fibers of 10.6 km (metropolitan) and 49.2 km (laboratory) while preserving non-classicality. These results define a high-bandwidth source-memory link that operates natively in the telecom band, introducing a new paradigm for the design and scaling of hybrid quantum networks. Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2602.02653 [quant-ph] (or arXiv:2602.02653v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2602.02653 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Yuzhou Chai [view email] [v1] Mon, 2 Feb 2026 19:00:01 UTC (10,152 KB) Full-text links: Access Paper: View a PDF of the paper titled Direct telecom network between atomic and solid-state quantum nodes, by Yuzhou Chai and 6 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-02 References & Citations INSPIRE HEP NASA ADSGoogle 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?) Links to Code Toggle Papers with Code (What is Papers with Code?) 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?) 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?)