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Spin-coherent conveyor-mode electron-shuttling could enable spin quantum-chips with scalable and sparse qubit-architecture. Its key feature is the operation by only few easily tuneable input terminals and compatibility with industrial gate-fabrication. Single electron shuttling in conveyor-mode in a 420\u2009nm long quantum bus has been demonstrated previously. Here we investigate the spin coherence during conveyor-mode shuttling by separation and rejoining an Einstein-Podolsky-Rosen (EPR) spin-pair. Compared to previous work we boost the shuttle velocity by a factor of 10000. We observe a rising spin-qubit dephasing time with the longer shuttle distances due to motional narrowing and estimate the spin-shuttle infidelity due to dephasing to be 0.7% for a total shuttle distance of nominal 560\u2009nm. Shuttling several loops up to an accumulated distance of 3.36\u2009\u03bcm, spin-entanglement of the EPR pair is still detectable, giving good perspective for our approach of a shuttle-based scalable quantum computing architecture in silicon.<\/jats:p>","DOI":"10.1038\/s41467-024-45583-7","type":"journal-article","created":{"date-parts":[[2024,2,13]],"date-time":"2024-02-13T07:04:18Z","timestamp":1707807858000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":54,"title":["Spin-EPR-pair separation by conveyor-mode single electron shuttling in Si\/SiGe"],"prefix":"10.1038","volume":"15","author":[{"given":"Tom","family":"Struck","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-8461-3099","authenticated-orcid":false,"given":"Mats","family":"Volmer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-1963-2470","authenticated-orcid":false,"given":"Lino","family":"Visser","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-1383-1943","authenticated-orcid":false,"given":"Tobias","family":"Offermann","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2009-6279","authenticated-orcid":false,"given":"Ran","family":"Xue","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jhih-Sian","family":"Tu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefan","family":"Trellenkamp","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0162-7943","authenticated-orcid":false,"given":"\u0141ukasz","family":"Cywi\u0144ski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5224-7254","authenticated-orcid":false,"given":"Hendrik","family":"Bluhm","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0904-9612","authenticated-orcid":false,"given":"Lars R.","family":"Schreiber","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,2,13]]},"reference":[{"key":"45583_CR1","doi-asserted-by":"publisher","first-page":"102","DOI":"10.1038\/s41565-017-0014-x","volume":"13","author":"J Yoneda","year":"2018","unstructured":"Yoneda, J. et al. 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The patent application, co-owned by RWTH Aachen University and the Forschungszentrum J\u00fclich, is currently pending. Qubit initialization and readout in the shuttle device is covered by patents families (US11687473B2, EP4031489, CN114402441) and (US 2022\/0327072, EP4031487, CN114424344) by inventors L.R.S., H.B., K\u00fcnne, co-owned by RWTH Aachen University and the Forschungszentrum J\u00fclich. US11687473B2 is granted, all other pending. L.R.S. and H.B. are founders and shareholders of ARQUE Systems GmbH. The other authors declare no competing interest.","order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"1325"}}