Demonstrating spatial entanglement for the position and momentum of laser beams

Charles Harb; Katherine Wagner; Hongxin Zou; Jiri Janousek; Vincent Delaubert; Nicolas Treps; Ping Koy Lam; Hans-A. Bachor

doi:10.1364/QAO.2007.QMB4

Quantum-Atom Optics Downunder
OSA Technical Digest (CD) (Optica Publishing Group, 2007),
paper QMB4
•https://doi.org/10.1364/QAO.2007.QMB4

Demonstrating spatial entanglement for the position and momentum of laser beams

Charles Harb, Katherine Wagner, Hongxin Zou, Jiri Janousek, Vincent Delaubert, Nicolas Treps, Ping Koy Lam, and Hans-A. Bachor

Quantum-Atom Optics Downunder 2007

Wollongong Australia
3–6 December 2007
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C. Harb, K. Wagner, H. Zou, J. Janousek, V. Delaubert, N. Treps, P. K. Lam, and H. Bachor, "Demonstrating spatial entanglement for the position and momentum of laser beams," in Quantum-Atom Optics Downunder, OSA Technical Digest (CD) (Optica Publishing Group, 2007), paper QMB4.

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Abstract

We present the latest results on the experimental generation of the position and momentum (x-p) entanglement for bright optical beams [1]. Spatial entanglement of light is a direct demonstration of entanglement of the momentum and position of laser beam as envisioned in the original publication by Einstein, Podolsky and Rosen [2]. Spatial entanglement has potential applications in quantum imaging systems and for quantum communication protocols. The position-momentum entanglement was observed in the form of the degree of inseparability, which was measured to be no larger than 0.76.

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