{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T22:38:12Z","timestamp":1792708692087,"version":"4.5.0"},"reference-count":34,"publisher":"Springer Science and Business Media LLC","issue":"10","license":[{"start":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T00:00:00Z","timestamp":1790640000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T00:00:00Z","timestamp":1790640000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Nat Electron"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    High-fidelity readout of spin qubits in semiconductor quantum dots can be achieved by combining a radiofrequency charge sensor with spin-to-charge conversion and Pauli spin blockade. However, reaching high readout fidelities with hole spin qubits remains challenging due to site-dependent spin anisotropies and short relaxation times during readout. Here we analyse the multiple error processes that arise during readout using a double-latched scheme in a germanium double-quantum-dot hole spin qubit system. We first investigate the spin-to-charge conversion process as a function of magnetic field orientation and configure the system to adiabatically map the\n                    <jats:inline-formula>\n                      <jats:alternatives>\n                        <jats:tex-math>$$\\left\\vert \\downarrow \\downarrow \\right\\rangle$$<\/jats:tex-math>\n                        <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                          <mml:mfenced>\n                            <mml:mo>\u2193\u2193<\/mml:mo>\n                          <\/mml:mfenced>\n                        <\/mml:math>\n                      <\/jats:alternatives>\n                    <\/jats:inline-formula>\n                    state to the only non-blockaded state. We reveal a strong magnetic field strength dependence of the spin relaxation rates, and minimize it by operating at low fields. We further characterize and mitigate the error processes that arise during the double-latching process. By combining a radiofrequency charge sensor, a double-latching process and optimized magnetic field parameters, we achieve a single-shot, single-shot fidelity of 97.0% for single-qubit state preparation and measurement while maintaining control of both spins under the readout conditions.\n                  <\/jats:p>","DOI":"10.1038\/s41928-026-01705-1","type":"journal-article","created":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T09:02:29Z","timestamp":1790672549000},"page":"1089-1097","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Identification and mitigation of errors in hole spin qubit readout"],"prefix":"10.1038","volume":"9","author":[{"given":"Eoin G.","family":"Kelly","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Leonardo","family":"Massai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bence","family":"Het\u00e9nyi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marta","family":"Pita-Vidal","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexei","family":"Orekhov","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cornelius","family":"Carlsson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Inga","family":"Seidler","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Konstantinos","family":"Tsoukalas","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lisa","family":"Sommer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michele","family":"Aldeghi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen W.","family":"Bedell","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephan","family":"Paredes","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Felix J.","family":"Schupp","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthias","family":"Mergenthaler","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andreas","family":"Fuhrer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gian","family":"Salis","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patrick","family":"Harvey-Collard","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,9,29]]},"reference":[{"key":"1705_CR1","doi-asserted-by":"publisher","first-page":"011002","DOI":"10.1088\/2633-4356\/abcd82","volume":"1","author":"M Lodari","year":"2021","unstructured":"Lodari, M. et al. Low percolation density and charge noise with holes in germanium. Mater. Quantum. Technol. 1, 011002 https:\/\/doi.org\/10.1088\/2633-4356\/abcd82 (2021).","journal-title":"Mater. Quantum. Technol."},{"key":"1705_CR2","doi-asserted-by":"publisher","first-page":"151","DOI":"10.1038\/s43246-024-00563-8","volume":"5","author":"L Massai","year":"2024","unstructured":"Massai, L. et al. Impact of interface traps on charge noise and low-density transport properties in Ge\/SiGe heterostructures. Comm. Mater. 5, 151 https:\/\/doi.org\/10.1038\/s43246-024-00563-8 (2024).","journal-title":"Comm. Mater."},{"key":"1705_CR3","doi-asserted-by":"publisher","first-page":"3478","DOI":"10.1038\/s41467-020-17211-7","volume":"11","author":"NW Hendrickx","year":"2020","unstructured":"Hendrickx, N. W. et al. A single-hole spin qubit. Nat. Comm. 11, 3478 https:\/\/doi.org\/10.1038\/s41467-020-17211-7 (2020).","journal-title":"Nat. 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Simultaneous single-qubit driving of semiconductor spin qubits at the fault-tolerant threshold. Nat. Comm. 14, 3617 https:\/\/doi.org\/10.1038\/s41467-023-39334-3 (2023).","journal-title":"Nat. Comm."},{"key":"1705_CR7","doi-asserted-by":"publisher","first-page":"021305","DOI":"10.1063\/5.0088229","volume":"10","author":"F Vigneau","year":"2023","unstructured":"Vigneau, F. et al. Probing quantum devices with radio-frequency reflectometry. Appl. Phys. Rev. 10, 021305 https:\/\/doi.org\/10.1063\/5.0088229 (2023).","journal-title":"Appl. Phys. Rev."},{"key":"1705_CR8","doi-asserted-by":"publisher","first-page":"021046","DOI":"10.1103\/PhysRevX.8.021046","volume":"8","author":"P Harvey-Collard","year":"2018","unstructured":"Harvey-Collard, P. et al. High-fidelity single-shot readout for a spin qubit via an enhanced latching mechanism. Phys. Rev. X 8, 021046 https:\/\/doi.org\/10.1103\/PhysRevX.8.021046 (2018).","journal-title":"Phys. Rev. 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Zenodo https:\/\/doi.org\/10.5281\/zenodo.21671988 (2026).","DOI":"10.5281\/zenodo.21671988"}],"container-title":["Nature Electronics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.nature.com\/articles\/s41928-026-01705-1.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.nature.com\/articles\/s41928-026-01705-1","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.nature.com\/articles\/s41928-026-01705-1.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T22:02:10Z","timestamp":1792706530000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.nature.com\/articles\/s41928-026-01705-1"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,29]]},"references-count":34,"journal-issue":{"issue":"10","published-online":{"date-parts":[[2026,10]]}},"alternative-id":["1705"],"URL":"https:\/\/doi.org\/10.1038\/s41928-026-01705-1","relation":{},"ISSN":["2520-1131"],"issn-type":[{"value":"2520-1131","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,29]]},"assertion":[{"value":"6 May 2025","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"17 August 2026","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"29 September 2026","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"The authors declare no competing interests.","order":1,"name":"Ethics","label":"Competing interests","group":{"name":"EthicsHeading","label":"Ethics"}}]}}