Quantum imaging and orbital angular momentum

Jonathan Leach, Barry Jack, Jacqui Romero, Dave Ireland, Sonja Franke-Arnold, Steve Barnett, Miles Padgett

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report a violation of the CHSH inequality for ghost-images. This is achieved by using two spatially separated phase modulators within the context of a two-photon parametric down-conversion experiment. We obtain edge enhanced images as a direct consequence of the quantum correlations in the orbital angular momentum (OAM) of the down-converted photon pairs. For phase objects, with differently orientated edges, we show a violation of the CHSH Bell-type inequality for an OAM subspace, thereby unambiguously revealing the quantum nature of our ghost-imaging arrangement.

Original languageEnglish
Title of host publicationCOMPLEX LIGHT AND OPTICAL FORCES IV
EditorsEJ Galvez, DL Andrews, J Gluckstad
Place of PublicationBELLINGHAM
PublisherSPIE
Pages-
Number of pages5
ISBN (Print)978-0-8194-8009-5
DOIs
Publication statusPublished - 2010
EventConference on Complex Light and Optical Forces IV - San Francisco
Duration: 27 Jan 201028 Jan 2010

Conference

ConferenceConference on Complex Light and Optical Forces IV
CitySan Francisco
Period27/01/1028/01/10

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