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Brightening up quantum computing

Amos Martinez
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⚡ Quantum Brief
Pascale Senellart-Mardon, CNRS research director and Quandela co-founder, highlights photonic quantum computing’s progress, emphasizing quantum dots as key to scalable, high-fidelity qubits in her November 2025 interview. Recent advances in quantum dot-based photon sources, cited in Nature Photonics (2023–2025), demonstrate near-unity indistinguishability, critical for fault-tolerant photonic quantum processors and long-distance quantum networks. Senellart-Mardon underscores the dual challenge of balancing academic research at Université Paris-Saclay with industry demands at Quandela, where commercializing lab breakthroughs requires rapid prototyping and investor alignment. She identifies error correction and photon loss as persistent hurdles, though 2024–2025 preprints suggest hybrid photonic-matter systems (e.g., quantum repeaters) may offer solutions within five years. The interview positions Europe as a photonic quantum hub, with France’s public-private partnerships accelerating hardware development, contrasting with U.S. and Chinese strategies focused on superconducting and trapped-ion systems.
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Subjects Quantum dotsQuantum informationQuantum optics Pascale Senellart-Mardon, CNRS research director at the Center for Nanoscience and Nanotechnology at the Université Paris-Saclay and co-founder of photonic quantum computer start-up Quandela, talks to Nature Materials about photonic quantum technologies and the challenges and opportunities of juggling academia and industry. Access through your institution Buy or subscribe This is a preview of subscription content, access via your institution Access options Access through your institution Access Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access subscription $32.99 / 30 days cancel any time Learn more Subscribe to this journal Receive 12 print issues and online access $259.00 per year only $21.58 per issue Learn more Buy this article Purchase on SpringerLink Instant access to full article PDF Buy now Prices may be subject to local taxes which are calculated during checkout ReferencesSomaschi, N. et al. Nat. Photon. 10, 340–345 (2016).Article CAS Google Scholar Gibney, E. Nature 635, 800–803 (2024).Article CAS PubMed Google Scholar Maring, N. et al. Nat. Photon. 18, 603–609 (2024).Article CAS Google Scholar Margaria, N. et al. Nat. Commun. 16, 7553 (2025).Article CAS PubMed PubMed Central Google Scholar Coste, N. et al. Nat. Photon. 17, 582–587 (2023).Article CAS Google Scholar Huet, H. et al. Nat. Commun. 16, 4337 (2025).Article CAS PubMed PubMed Central Google Scholar Wein, S. C. et al. Preprint at https://arxiv.org/abs/2412.08611 (2024).de Gliniasty, G. et al. Quantum 8, 1423 (2024).Article Google Scholar Download referencesAuthor informationAuthors and AffiliationsNature Materials https://www.nature.com/nmat/Amos MartinezAuthorsAmos MartinezView author publicationsSearch author on:PubMed Google ScholarCorresponding authorCorrespondence to Amos Martinez.Ethics declarations Competing interests P.S. is co-founder and scientific advisor of the company Quandela. Rights and permissionsReprints and permissionsAbout this articleCite this articleMartinez, A. Brightening up quantum computing. Nat. Mater. (2025). https://doi.org/10.1038/s41563-025-02410-8Download citationPublished: 20 November 2025Version of record: 20 November 2025DOI: https://doi.org/10.1038/s41563-025-02410-8Share this articleAnyone you share the following link with will be able to read this content:Get shareable linkSorry, a shareable link is not currently available for this article.Copy shareable link to clipboard Provided by the Springer Nature SharedIt content-sharing initiative

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Source: Nature Quantum Materials

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