Identifying Entanglement Using Quantum Ghost Interference and Imaging

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dc.contributor.authorD’Angelo, Milena
dc.contributor.authorKim, Yoon-Ho
dc.contributor.authorKulik, Sergei
dc.contributor.authorShih, Yanhua
dc.date.accessioned2025-08-28T16:10:38Z
dc.date.issued2004-06-08
dc.description.abstractWe report a quantum interference and imaging experiment which allows identifying the entanglement in momentum and position variables of a two-photon system. The measurements show indeed that the uncertainties in the sum of momenta and in the difference of positions of the entangled two-photon satisfy both EPR inequalities △(k₁ + k₂)< min(△k₁, △k₂) and △(x₁ - x₂) <min (△x₁, △x₂). These two inequalities, together, represent a nonclassicality condition. Our measurements provide a direct way to distinguish between quantum entanglement and classical correlation in continuous variables for systems of pairs of photons.
dc.description.sponsorshipThis work was supported, in part, by NASA-CASPR program, NSF, and ONR. Y. H. K. also acknowledges support from the Korea Research Foundation (KRF-2003-070-C00024).
dc.description.urihttps://link.aps.org/doi/10.1103/PhysRevLett.92.233601
dc.format.extent4 pages
dc.genrejournal articles
dc.identifierdoi:10.13016/m20wvl-gq9o
dc.identifier.citationD’Angelo, Milena, Yoon-Ho Kim, Sergei P. Kulik, and Yanhua Shih. “Identifying Entanglement Using Quantum Ghost Interference and Imaging.” Physical Review Letters 92, no. 23 (2004): 233601. https://doi.org/10.1103/PhysRevLett.92.233601.
dc.identifier.urihttps://doi.org/10.1103/PhysRevLett.92.233601
dc.identifier.urihttp://hdl.handle.net/11603/40008
dc.language.isoen
dc.publisherAPS
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Staff Collection
dc.relation.ispartofUMBC Physics Department
dc.relation.ispartofUMBC Student Collection
dc.relation.ispartofUMBC Faculty Collection
dc.rights©2004 American Physical Society
dc.subjectUMBC Quantum Optics Laboratory
dc.titleIdentifying Entanglement Using Quantum Ghost Interference and Imaging
dc.typeText
dcterms.creatorhttps://orcid.org/0000-0002-8206-3982

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