Quantum random access memory put to the test
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Subjects Quantum informationQuantum mechanics Specialized quantum memories will be required to achieve quantum speedups for data-intensive problems. Now, a proof-of-principle demonstration of such a quantum memory has been performed with a superconducting processor. 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 Rent or buy this article Prices vary by article type from$1.95 to$39.95 Learn more Prices may be subject to local taxes which are calculated during checkout Fig. 1: Comparing classical and quantum RAM.The alternative text for this image may have been generated using AI. ReferencesShen, F. et al. Nat. Phys. https://doi.org/10.1038/s41567-026-03218-2 (2026).Article Google Scholar Giovannetti, V., Lloyd, S. & Maccone, L. Phys. Rev. Lett 100, 160501 (2008).Article ADS Google Scholar Aaronson, S. Nat. Phys. 11, 291–293 (2015).Article Google Scholar Jaques, S. & Rattew, A. Quantum 9, 1922 (2025).Article Google Scholar Terhal, B. M. Rev. Mod. Phys. 87, 307–346 (2015).Article ADS Google Scholar Di Matteo, O., Gheorghiu, V. & Mosca, M. IEEE Trans. Quant. Eng. 1, 1–13 (2020).Article Google Scholar Hann, C. T. et al. PRX Quantum 2, 020311 (2021).Article ADS Google Scholar Arunachalam, S. et al. New J. Phys. 17, 123010 (2015).Article ADS Google Scholar Steiger, D. Perimeter Institute https://doi.org/10.48660/16080019 (2016).Article Google Scholar Download referencesAuthor informationAuthors and AffiliationsAWS Center for Quantum Computing, Pasadena, CA, USAConnor T. HannAuthorsConnor T. HannView author publicationsSearch author on:PubMed Google ScholarCorresponding authorCorrespondence to Connor T. Hann.Ethics declarations Competing interests The author declares no competing interests. Rights and permissionsReprints and permissionsAbout this articleCite this articleHann, C.T. Quantum random access memory put to the test. Nat. Phys. (2026). https://doi.org/10.1038/s41567-026-03273-9Download citationPublished: 05 May 2026Version of record: 05 May 2026DOI: https://doi.org/10.1038/s41567-026-03273-9Share 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 A bucket-brigade quantum random access memory Fanhao ShenYujie JiJianwei Yin Nature Physics Article 16 Mar 2026