Spatial entanglement is investigated for applications in quantum imaging relying on multi-photon absorption. A product of variances in space and momentum shows strong violation of the classical correlation bound.
© 2009 The Optical Society
D. Korn, D. Puhlmann, C. Henkel, R. Elsner, and M. Ostermeyer, "Spatial Entanglement Characterization in a Biphoton Beam," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper IWC4.
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