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Superiority of heterodyning over homodyning: An assessment with quadrature moments

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dc.contributor.authorTeo, Y. S.
dc.contributor.authorMüller, C. R.
dc.contributor.authorJeong, H.
dc.contributor.authorHradil, Z.
dc.contributor.authorŘeháček, J.
dc.contributor.authorSánchez Soto, Luis Lorenzo
dc.date.accessioned2023-06-17T21:58:28Z
dc.date.available2023-06-17T21:58:28Z
dc.date.issued2017-04-17
dc.description©2017 American Physical Socie. We acknowledge financial support from the BK21 Plus Program (Grant No. 21A20131111123) funded by the Ministry of Korea (NRF), the NRF grant funded by the Korea government (MSIP) (Grant No. 2010-0018295), the Korea Institute of Science and Technology Institutional Program (Project No. 2E26680-16-P025), the European Research Council (Advanced Grant PACART), the Spanish MINECO (Grant No. FIS2015-67963-P), the Grant Agency of the Czech Republic (Grant No. 15-03194S), and the IGA Project of the Palacky University (Grant No. IGA PrF 2016-005).
dc.description.abstractWe examine the moment-reconstruction performance of both the homodyne and heterodyne (doublehomodyne) measurement schemes for arbitrary quantum states and introduce moment estimators that optimize the respective schemes for any given data. In the large-data limit, these estimators are as efficient as the maximum-likelihood estimators. We then illustrate the superiority of the heterodyne measurement for the reconstruction of the first and second moments by analyzing Gaussian states and many other significant nonclassical states. Finally, we present an extension of our theories to two-mode sources, which can be straightforwardly generalized to all other multimode sources.
dc.description.departmentDepto. de Óptica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipUnión Europea. FP7
dc.description.sponsorshipMinisterio de Economía y Competitividad (MINECO)
dc.description.sponsorshipGrant Agency of the Czech Republic
dc.description.sponsorshipIGA Project of the Palacky University
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/43256
dc.identifier.doi10.1103/PhysRevA.95.042322
dc.identifier.issn2469-9926
dc.identifier.officialurlhttp://dx.doi.org/10.1103/PhysRevA.95.042322
dc.identifier.relatedurlhttps://journals.aps.org
dc.identifier.urihttps://hdl.handle.net/20.500.14352/17868
dc.issue.number4
dc.journal.titlePhysical review A
dc.language.isoeng
dc.publisherAmer Physical Soc
dc.relation.projectIDPACART (340625)
dc.relation.projectIDFIS2015-67963-P
dc.relation.projectID15-03194S
dc.relation.projectIDIGA PrF 2016-005
dc.rights.accessRightsopen access
dc.subject.cdu535
dc.subject.keywordQuantum key distribution
dc.subject.keywordMany-body systems
dc.subject.keywordUncertainty principle
dc.subject.keywordJoint measurement
dc.subject.keywordOptical homodyne
dc.subject.keywordExcess-noise
dc.subject.keywordInformation
dc.subject.keywordPhase
dc.subject.keywordObservables
dc.subject.keywordVariables
dc.subject.ucmÓptica (Física)
dc.subject.unesco2209.19 Óptica Física
dc.titleSuperiority of heterodyning over homodyning: An assessment with quadrature moments
dc.typejournal article
dc.volume.number95
dspace.entity.typePublication
relation.isAuthorOfPublication88b797ff-cbd7-4498-a9c7-4e39f4fa4776
relation.isAuthorOfPublication.latestForDiscovery88b797ff-cbd7-4498-a9c7-4e39f4fa4776

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