https://doi.org/10.1140/epjd/e2012-20695-2
Regular Article
Towards the evidence of a purely spatial Einstein-Podolsky-Rosen paradox in images: measurement scheme and first experimental results
Département d’Optique P.M. Duffieux, Institut FEMTO-ST, UMR CNRS
6174, Université de Franche-Comté, 16 route de Gray, 25030
Besançon Cedex,
France
a e-mail: elantz@univ-fcomte.fr
Received:
30
November
2011
Received in final form:
9
March
2012
Published online:
20
July
2012
We propose a scheme to evidence the Einstein-Podolsky-Rosen (EPR) paradox for photons produced by spontaneous down conversion, from measurement of purely spatial correlations of photon positions both in the near- and in the far-field. Experimentally, quantum correlations have been measured in the far-field of parametric fluorescence created in a type II BBO crystal. Imaging is performed in the photon counting regime with an electron-multiplying CCD (EMCCD) camera.
Key words: Topical issue: High Dimensional Quantum Entanglement. Guest editors: Sonja Franke-Arnold, Alessandra Gatti and Nicolas Treps
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2012
