Self-testing of a single quantum system from theory to experiment
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...
| Autores: | , , , , , , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Universidad de Sevilla (US) |
| Repositorio: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:idus.us.es:11441/149939 |
| Acceso en línea: | https://hdl.handle.net/11441/149939 https://doi.org/10.1038/s41534-023-00769-7 |
| Access Level: | acceso abierto |
| Palabra clave: | Single quantum system Klyachko-Can-Binicioğlu-Shumovsky inequality |
| id |
ES_f528007ea4fc65f902306e0e79e8a940 |
|---|---|
| oai_identifier_str |
oai:idus.us.es:11441/149939 |
| network_acronym_str |
ES |
| network_name_str |
España |
| repository_id_str |
|
| spelling |
Self-testing of a single quantum system from theory to experimentHu, Xiao-MinXie, YiArora, Atul SinghAi, Ming-ZhongBharti, KishorZhang, JieWu, WeiChen, Ping XingCui, Jin MingLiu, Bi-HengHuang, Yun-FengLi, Chuan-FengGuo, Guang-CanRoland, JérémieCabello Quintero, AdánKwek, Leong-ChuanSingle quantum systemKlyachko-Can-Binicioğlu-Shumovsky inequalitySelf-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.Nature ResearchFísica Aplicada IIFQM239: Fundamentos de Mecánica CuánticaNational Natural Science Foundation of ChinaUniversidad de SevillaEuropean Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER)Ministerio de Economia, Industria y Competitividad (MINECO). EspañaMinisterio de Ciencia, Innovación y Universidades (MICINN). EspañaMinistry of Education, SingaporeNational Research Foundation SingaporeDepartment of Energy. United StatesInstitute for Quantum Information and MatterBelgian Fonds pour la Formation à la Recherche2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/149939https://doi.org/10.1038/s41534-023-00769-7reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)Inglésnpj Quantum Information, 9 (103).2017YFA03041002021YFE0113100117340151187434511821404119043571217436711904402120744331217444712004430121744482021ZD03012002021ZD03016052022RC11942008085J02US15097PCI2019-111885-2PID2020-113738GB-I00OMA-2120757DE-SC0020312DE-SC0019040DE-SC0019449GBMF1250002FA9550-18-1-01611.E.081.17FR.50.05.18.Fhttps://www.nature.com/articles/s41534-023-00769-7info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1499392026-06-17T12:51:07Z |
| dc.title.none.fl_str_mv |
Self-testing of a single quantum system from theory to experiment |
| title |
Self-testing of a single quantum system from theory to experiment |
| spellingShingle |
Self-testing of a single quantum system from theory to experiment Hu, Xiao-Min Single quantum system Klyachko-Can-Binicioğlu-Shumovsky inequality |
| title_short |
Self-testing of a single quantum system from theory to experiment |
| title_full |
Self-testing of a single quantum system from theory to experiment |
| title_fullStr |
Self-testing of a single quantum system from theory to experiment |
| title_full_unstemmed |
Self-testing of a single quantum system from theory to experiment |
| title_sort |
Self-testing of a single quantum system from theory to experiment |
| dc.creator.none.fl_str_mv |
Hu, Xiao-Min Xie, Yi Arora, Atul Singh Ai, Ming-Zhong Bharti, Kishor Zhang, Jie Wu, Wei Chen, Ping Xing Cui, Jin Ming Liu, Bi-Heng Huang, Yun-Feng Li, Chuan-Feng Guo, Guang-Can Roland, Jérémie Cabello Quintero, Adán Kwek, Leong-Chuan |
| author |
Hu, Xiao-Min |
| author_facet |
Hu, Xiao-Min Xie, Yi Arora, Atul Singh Ai, Ming-Zhong Bharti, Kishor Zhang, Jie Wu, Wei Chen, Ping Xing Cui, Jin Ming Liu, Bi-Heng Huang, Yun-Feng Li, Chuan-Feng Guo, Guang-Can Roland, Jérémie Cabello Quintero, Adán Kwek, Leong-Chuan |
| author_role |
author |
| author2 |
Xie, Yi Arora, Atul Singh Ai, Ming-Zhong Bharti, Kishor Zhang, Jie Wu, Wei Chen, Ping Xing Cui, Jin Ming Liu, Bi-Heng Huang, Yun-Feng Li, Chuan-Feng Guo, Guang-Can Roland, Jérémie Cabello Quintero, Adán Kwek, Leong-Chuan |
| author2_role |
author author author author author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Física Aplicada II FQM239: Fundamentos de Mecánica Cuántica National Natural Science Foundation of China Universidad de Sevilla European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) Ministerio de Economia, Industria y Competitividad (MINECO). España Ministerio de Ciencia, Innovación y Universidades (MICINN). España Ministry of Education, Singapore National Research Foundation Singapore Department of Energy. United States Institute for Quantum Information and Matter Belgian Fonds pour la Formation à la Recherche |
| dc.subject.none.fl_str_mv |
Single quantum system Klyachko-Can-Binicioğlu-Shumovsky inequality |
| topic |
Single quantum system Klyachko-Can-Binicioğlu-Shumovsky inequality |
| description |
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. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/11441/149939 https://doi.org/10.1038/s41534-023-00769-7 |
| url |
https://hdl.handle.net/11441/149939 https://doi.org/10.1038/s41534-023-00769-7 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
npj Quantum Information, 9 (103). 2017YFA0304100 2021YFE0113100 11734015 11874345 11821404 11904357 12174367 11904402 12074433 12174447 12004430 12174448 2021ZD0301200 2021ZD0301605 2022RC1194 2008085J02 US15097 PCI2019-111885-2 PID2020-113738GB-I00 OMA-2120757 DE-SC0020312 DE-SC0019040 DE-SC0019449 GBMF1250002 FA9550-18-1-0161 1.E.081.17F R.50.05.18.F https://www.nature.com/articles/s41534-023-00769-7 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf application/pdf |
| dc.publisher.none.fl_str_mv |
Nature Research |
| publisher.none.fl_str_mv |
Nature Research |
| dc.source.none.fl_str_mv |
reponame:idUS. Depósito de Investigación de la Universidad de Sevilla instname:Universidad de Sevilla (US) |
| instname_str |
Universidad de Sevilla (US) |
| reponame_str |
idUS. Depósito de Investigación de la Universidad de Sevilla |
| collection |
idUS. Depósito de Investigación de la Universidad de Sevilla |
| repository.name.fl_str_mv |
|
| repository.mail.fl_str_mv |
|
| _version_ |
1869424564075757568 |
| score |
15,301603 |