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dc.contributor.authorGuerini, Leonardo [UNESP]
dc.contributor.authorQuintino, Marco Túlio
dc.contributor.authorAolita, Leandro
dc.date.accessioned2020-12-12T01:44:18Z
dc.date.available2020-12-12T01:44:18Z
dc.date.issued2019-10-14
dc.identifierhttp://dx.doi.org/10.1103/PhysRevA.100.042308
dc.identifier.citationPhysical Review A, v. 100, n. 4, 2019.
dc.identifier.issn2469-9934
dc.identifier.issn2469-9926
dc.identifier.urihttp://hdl.handle.net/11449/199601
dc.description.abstractWe study prepare-and-measure experiments where the sender (Alice) receives trusted quantum inputs but has an untrusted state-preparation device and the receiver (Bob) has a fully untrusted measurement device. A distributed-sampling task naturally arises in this scenario, where the goal is for Alice and Bob to reproduce the statistics of his measurements on her quantum inputs using a fixed communication channel. Their performance of this task can certify quantum communication (QC), and this is formalized by measurement-device-independent QC witnesses. Furthermore, we prove that QC can provide an advantage (over classical communication) for distributed sampling if and only if Bob's measurements are incompatible. This gives an operational interpretation to measurement incompatibility and motivates a generalized notion of it related to a subset of quantum states. Our findings have both fundamental and applied implications.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.language.isoeng
dc.relation.ispartofPhysical Review A
dc.sourceScopus
dc.titleDistributed sampling, quantum communication witnesses, and measurement incompatibilityen
dc.typeArtigo
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversity of Tokyo
dc.contributor.institutionUniversidade Federal do Rio de Janeiro (UFRJ)
dc.description.affiliationInternational Centre for Theoretical Physics South American Institute for Fundamental Research Instituto de Física Teórica UNESP, R. Dr. Bento Teobaldo Ferraz 271
dc.description.affiliationDepartment of Physics Graduate School of Science University of Tokyo, Hongo 7-3-1
dc.description.affiliationInstituto de Física Universidade Federal do Rio de Janeiro, P.O. Box 68528
dc.description.affiliationUnespInternational Centre for Theoretical Physics South American Institute for Fundamental Research Instituto de Física Teórica UNESP, R. Dr. Bento Teobaldo Ferraz 271
dc.identifier.doi10.1103/PhysRevA.100.042308
dc.description.sponsorshipIdFAPERJ: JCN E-26/202.701/2018
dc.description.sponsorshipIdCAPES: PROCAD2013
dc.identifier.scopus2-s2.0-85074448939
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