Experimental violation of n-locality in a star quantum network
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/jspui/handle/123456789/30093 |
Resumo: | The launch of a satellite capable of distributing entanglement through long distances and the first loophole-free violation of Bell inequalities are milestones indicating a clear path for the establishment of quantum networks. However, nonlocality in networks with independent entanglement sources has only been experimentally verified in simple tripartite networks, via the violation of bilocality inequalities. Here, by using a scalable photonic platform, we implement star-shaped quantum networks consisting of up to five distant nodes and four independent entanglement sources. We exploit this platform to violate the chained n-locality inequality and thus witness, in a device-independent way, the emergence of nonlocal correlations among the nodes of the implemented networks. These results open new perspectives for quantum information processing applications in the relevant regime where the observed correlations are compatible with standard local hidden variable models but are nonclassical if the independence of the sources is taken into account |
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Poderini, DavideAgresti, IrisMarchese, GuglielmoPolino, EmanueleGiordani, TairaSuprano, AlessiaValeri, MauroMilani, GiorgioSpagnolo, NicolòCarvacho, GonzaloAraújo, Rafael Chaves SoutoSciarrino, Fábio2020-09-18T13:31:26Z2020-09-18T13:31:26Z2020-05-18PODERINI, Davide; AGRESTI, Iris; MARCHESE, Guglielmo; POLINO, Emanuele; GIORDANI, Taira; SUPRANO, Alessia; VALERI, Mauro; MILANI, Giorgio; SPAGNOLO, Nicolò; CARVACHO, Gonzalo; CHAVES, Rafael; SCIARRINO, Fábio. Experimental violation of n-locality in a star quantum network. Nature Communications, [S.L.], v. 11, n. 1, p. 2467, 18 maio 2020. Disponível em: https://www.nature.com/articles/s41467-020-16189-6. Acesso em: 03 set. 2020. http://dx.doi.org/10.1038/s41467-020-16189-6.2041-1723https://repositorio.ufrn.br/jspui/handle/123456789/3009310.1038/s41467-020-16189-6Nature ResearchAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessQuantum networksExperimental violation of n-locality in a star quantum networkinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleThe launch of a satellite capable of distributing entanglement through long distances and the first loophole-free violation of Bell inequalities are milestones indicating a clear path for the establishment of quantum networks. However, nonlocality in networks with independent entanglement sources has only been experimentally verified in simple tripartite networks, via the violation of bilocality inequalities. Here, by using a scalable photonic platform, we implement star-shaped quantum networks consisting of up to five distant nodes and four independent entanglement sources. We exploit this platform to violate the chained n-locality inequality and thus witness, in a device-independent way, the emergence of nonlocal correlations among the nodes of the implemented networks. These results open new perspectives for quantum information processing applications in the relevant regime where the observed correlations are compatible with standard local hidden variable models but are nonclassical if the independence of the sources is taken into accountengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALExperimentalViolation_ARAUJO_2020.pdfExperimentalViolation_ARAUJO_2020.pdfArtigoapplication/pdf1192577https://repositorio.ufrn.br/bitstream/123456789/30093/1/ExperimentalViolation_ARAUJO_2020.pdfb12416802594d192a19d99922dc2f4d7MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/30093/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/30093/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53TEXTExperimentalViolation_ARAUJO_2020.pdf.txtExperimentalViolation_ARAUJO_2020.pdf.txtExtracted texttext/plain43632https://repositorio.ufrn.br/bitstream/123456789/30093/4/ExperimentalViolation_ARAUJO_2020.pdf.txtef12e3a792f606eb6a856c6e4b68c303MD54THUMBNAILExperimentalViolation_ARAUJO_2020.pdf.jpgExperimentalViolation_ARAUJO_2020.pdf.jpgGenerated Thumbnailimage/jpeg1458https://repositorio.ufrn.br/bitstream/123456789/30093/5/ExperimentalViolation_ARAUJO_2020.pdf.jpgdc75d95bc201e0d0a4d72314f39b73f5MD55123456789/300932020-09-20 04:49:49.616oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-09-20T07:49:49Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Experimental violation of n-locality in a star quantum network |
title |
Experimental violation of n-locality in a star quantum network |
spellingShingle |
Experimental violation of n-locality in a star quantum network Poderini, Davide Quantum networks |
title_short |
Experimental violation of n-locality in a star quantum network |
title_full |
Experimental violation of n-locality in a star quantum network |
title_fullStr |
Experimental violation of n-locality in a star quantum network |
title_full_unstemmed |
Experimental violation of n-locality in a star quantum network |
title_sort |
Experimental violation of n-locality in a star quantum network |
author |
Poderini, Davide |
author_facet |
Poderini, Davide Agresti, Iris Marchese, Guglielmo Polino, Emanuele Giordani, Taira Suprano, Alessia Valeri, Mauro Milani, Giorgio Spagnolo, Nicolò Carvacho, Gonzalo Araújo, Rafael Chaves Souto Sciarrino, Fábio |
author_role |
author |
author2 |
Agresti, Iris Marchese, Guglielmo Polino, Emanuele Giordani, Taira Suprano, Alessia Valeri, Mauro Milani, Giorgio Spagnolo, Nicolò Carvacho, Gonzalo Araújo, Rafael Chaves Souto Sciarrino, Fábio |
author2_role |
author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Poderini, Davide Agresti, Iris Marchese, Guglielmo Polino, Emanuele Giordani, Taira Suprano, Alessia Valeri, Mauro Milani, Giorgio Spagnolo, Nicolò Carvacho, Gonzalo Araújo, Rafael Chaves Souto Sciarrino, Fábio |
dc.subject.por.fl_str_mv |
Quantum networks |
topic |
Quantum networks |
description |
The launch of a satellite capable of distributing entanglement through long distances and the first loophole-free violation of Bell inequalities are milestones indicating a clear path for the establishment of quantum networks. However, nonlocality in networks with independent entanglement sources has only been experimentally verified in simple tripartite networks, via the violation of bilocality inequalities. Here, by using a scalable photonic platform, we implement star-shaped quantum networks consisting of up to five distant nodes and four independent entanglement sources. We exploit this platform to violate the chained n-locality inequality and thus witness, in a device-independent way, the emergence of nonlocal correlations among the nodes of the implemented networks. These results open new perspectives for quantum information processing applications in the relevant regime where the observed correlations are compatible with standard local hidden variable models but are nonclassical if the independence of the sources is taken into account |
publishDate |
2020 |
dc.date.accessioned.fl_str_mv |
2020-09-18T13:31:26Z |
dc.date.available.fl_str_mv |
2020-09-18T13:31:26Z |
dc.date.issued.fl_str_mv |
2020-05-18 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
PODERINI, Davide; AGRESTI, Iris; MARCHESE, Guglielmo; POLINO, Emanuele; GIORDANI, Taira; SUPRANO, Alessia; VALERI, Mauro; MILANI, Giorgio; SPAGNOLO, Nicolò; CARVACHO, Gonzalo; CHAVES, Rafael; SCIARRINO, Fábio. Experimental violation of n-locality in a star quantum network. Nature Communications, [S.L.], v. 11, n. 1, p. 2467, 18 maio 2020. Disponível em: https://www.nature.com/articles/s41467-020-16189-6. Acesso em: 03 set. 2020. http://dx.doi.org/10.1038/s41467-020-16189-6. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/jspui/handle/123456789/30093 |
dc.identifier.issn.none.fl_str_mv |
2041-1723 |
dc.identifier.doi.none.fl_str_mv |
10.1038/s41467-020-16189-6 |
identifier_str_mv |
PODERINI, Davide; AGRESTI, Iris; MARCHESE, Guglielmo; POLINO, Emanuele; GIORDANI, Taira; SUPRANO, Alessia; VALERI, Mauro; MILANI, Giorgio; SPAGNOLO, Nicolò; CARVACHO, Gonzalo; CHAVES, Rafael; SCIARRINO, Fábio. Experimental violation of n-locality in a star quantum network. Nature Communications, [S.L.], v. 11, n. 1, p. 2467, 18 maio 2020. Disponível em: https://www.nature.com/articles/s41467-020-16189-6. Acesso em: 03 set. 2020. http://dx.doi.org/10.1038/s41467-020-16189-6. 2041-1723 10.1038/s41467-020-16189-6 |
url |
https://repositorio.ufrn.br/jspui/handle/123456789/30093 |
dc.language.iso.fl_str_mv |
eng |
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eng |
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Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ info:eu-repo/semantics/openAccess |
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Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ |
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openAccess |
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Nature Research |
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Nature Research |
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