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Proceedings Paper

Quantum imaging and orbital angular momentum
Author(s): Jonathan Leach; Barry Jack; Jacqui Romero; Dave Ireland; Sonja Franke-Arnold; Steve Barnett; Miles Padgett
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Paper 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.

Paper Details

Date Published: 8 February 2010
PDF: 5 pages
Proc. SPIE 7613, Complex Light and Optical Forces IV, 76130L (8 February 2010); doi: 10.1117/12.845250
Show Author Affiliations
Jonathan Leach, Univ. of Glasgow (United Kingdom)
Barry Jack, Univ. of Glasgow (United Kingdom)
Jacqui Romero, Univ. of Glasgow (United Kingdom)
Dave Ireland, Univ. of Glasgow (United Kingdom)
Sonja Franke-Arnold, Univ. of Glasgow (United Kingdom)
Steve Barnett, Univ. of Strathclyde (United Kingdom)
Miles Padgett, Univ. of Glasgow (United Kingdom)


Published in SPIE Proceedings Vol. 7613:
Complex Light and Optical Forces IV
Enrique J. Galvez; David L. Andrews; Jesper Glückstad, Editor(s)

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