Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevLett.110.130401
DC FieldValue
dc.titleWitnessing trustworthy single-photon entanglement with local homodyne measurements
dc.contributor.authorMorin, O.
dc.contributor.authorBancal, J.-D.
dc.contributor.authorHo, M.
dc.contributor.authorSekatski, P.
dc.contributor.authorD'Auria, V.
dc.contributor.authorGisin, N.
dc.contributor.authorLaurat, J.
dc.contributor.authorSangouard, N.
dc.date.accessioned2016-09-01T07:17:49Z
dc.date.available2016-09-01T07:17:49Z
dc.date.issued2013-03-25
dc.identifier.citationMorin, O., Bancal, J.-D., Ho, M., Sekatski, P., D'Auria, V., Gisin, N., Laurat, J., Sangouard, N. (2013-03-25). Witnessing trustworthy single-photon entanglement with local homodyne measurements. Physical Review Letters 110 (13) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.110.130401
dc.identifier.issn00319007
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/126344
dc.description.abstractSingle-photon entangled states, i.e., states describing two optical paths sharing a single photon, constitute the simplest form of entanglement. Yet they provide a valuable resource in quantum information science. Specifically, they lie at the heart of quantum networks, as they can be used for quantum teleportation, swapped, and purified with linear optics. The main drawback of such entanglement is the difficulty in measuring it. Here, we present and experimentally test an entanglement witness allowing one to say whether a given state is path entangled and also that entanglement lies in the subspace, where the optical paths are each filled with one photon at most, i.e., refers to single-photon entanglement. It uses local homodyning only and relies on no assumption about the Hilbert space dimension of the measured system. Our work provides a simple and trustworthy method for verifying the proper functioning of future quantum networks. © 2013 American Physical Society.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1103/PhysRevLett.110.130401
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentCENTRE FOR QUANTUM TECHNOLOGIES
dc.description.doi10.1103/PhysRevLett.110.130401
dc.description.sourcetitlePhysical Review Letters
dc.description.volume110
dc.description.issue13
dc.description.page-
dc.description.codenPRLTA
dc.identifier.isiut000316683500001
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