dc.creator | Hu, Xiao-Min | es |
dc.creator | Xie, Yi | es |
dc.creator | Arora, Atul Singh | es |
dc.creator | Ai, Ming-Zhong | es |
dc.creator | Bharti, Kishor | es |
dc.creator | Zhang, Jie | es |
dc.creator | Wu, Wei | es |
dc.creator | Chen, Ping Xing | es |
dc.creator | Cui, Jin Ming | es |
dc.creator | Liu, Bi-Heng | es |
dc.creator | Huang, Yun-Feng | es |
dc.creator | Li, Chuan-Feng | es |
dc.creator | Guo, Guang-Can | es |
dc.creator | Roland, Jérémie | es |
dc.creator | Cabello Quintero, Adán | es |
dc.creator | Kwek, Leong-Chuan | es |
dc.date.accessioned | 2023-10-30T07:07:21Z | |
dc.date.available | 2023-10-30T07:07:21Z | |
dc.date.issued | 2023-10-19 | |
dc.identifier.citation | Hu, X., Xie, Y., Arora, A.S., Ai, ., Bharti, K., Zhang, J.,...,Kwek, L. (2023). Self-testing of a single quantum system from theory to experiment. npj Quantum Information, 9 (103). https://doi.org/10.1038/s41534-023-00769-7. | |
dc.identifier.issn | 2056-6387 | es |
dc.identifier.uri | https://hdl.handle.net/11441/149939 | |
dc.description.abstract | Self-testing allows one to characterise quantum systems under minimal assumptions. However, existing schemes rely on quantum nonlocality and cannot be applied to systems that are not entangled. Here, we introduce a robust method that achieves self-testing of individual systems by taking advantage of contextuality. The scheme is based on the simplest contextuality witness for the simplest contextual quantum system—the Klyachko-Can-Binicioğlu-Shumovsky inequality for the qutrit. We establish a lower bound on the fidelity of the state and the measurements as a function of the value of the witness under a pragmatic assumption on the measurements. We apply the method in an experiment on a single trapped 40Ca+ using randomly chosen measurements and perfect detection efficiency. Using the observed statistics, we obtain an experimental demonstration of self-testing of a single quantum system. | es |
dc.format | application/pdf | es |
dc.format.extent | 11 p. | es |
dc.language.iso | eng | es |
dc.publisher | Nature Research | es |
dc.relation.ispartof | npj Quantum Information, 9 (103). | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Single quantum system | es |
dc.subject | Klyachko-Can-Binicioğlu-Shumovsky inequality | es |
dc.title | Self-testing of a single quantum system from theory to experiment | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física Aplicada II | es |
dc.relation.projectID | 2017YFA0304100 | es |
dc.relation.projectID | 2021YFE0113100 | es |
dc.relation.projectID | 11734015 | es |
dc.relation.projectID | 11874345 | es |
dc.relation.projectID | 11821404 | es |
dc.relation.projectID | 11904357 | es |
dc.relation.projectID | 12174367 | es |
dc.relation.projectID | 11904402 | es |
dc.relation.projectID | 12074433 | es |
dc.relation.projectID | 12174447 | es |
dc.relation.projectID | 12004430 | es |
dc.relation.projectID | 12174448 | es |
dc.relation.projectID | 2021ZD0301200 | es |
dc.relation.projectID | 2021ZD0301605 | es |
dc.relation.projectID | 2022RC1194 | es |
dc.relation.projectID | 2008085J02 | es |
dc.relation.projectID | US15097 | es |
dc.relation.projectID | PCI2019-111885-2 | es |
dc.relation.projectID | PID2020-113738GB-I00 | es |
dc.relation.projectID | OMA-2120757 | es |
dc.relation.projectID | DE-SC0020312 | es |
dc.relation.projectID | DE-SC0019040 | es |
dc.relation.projectID | DE-SC0019449 | es |
dc.relation.projectID | GBMF1250002 | es |
dc.relation.projectID | FA9550-18-1-0161 | es |
dc.relation.projectID | 1.E.081.17F | es |
dc.relation.projectID | R.50.05.18.F | es |
dc.relation.publisherversion | https://www.nature.com/articles/s41534-023-00769-7 | es |
dc.identifier.doi | 10.1038/s41534-023-00769-7 | es |
dc.contributor.group | Universidad de Sevilla. FQM239: Fundamentos de Mecánica Cuántica | es |
dc.journaltitle | npj Quantum Information | es |
dc.publication.volumen | 9 | es |
dc.publication.issue | 103 | es |
dc.contributor.funder | National Natural Science Foundation of China | es |
dc.contributor.funder | Universidad de Sevilla | es |
dc.contributor.funder | European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) | es |
dc.contributor.funder | Ministerio de Economia, Industria y Competitividad (MINECO). España | es |
dc.contributor.funder | Ministerio de Ciencia, Innovación y Universidades (MICINN). España | es |
dc.contributor.funder | Ministry of Education, Singapore | es |
dc.contributor.funder | National Research Foundation Singapore | es |
dc.contributor.funder | Department of Energy. United States | es |
dc.contributor.funder | Institute for Quantum Information and Matter | es |
dc.contributor.funder | Belgian Fonds pour la Formation à la Recherche | es |