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Demonstration of the spatial separation of the entangled quantum side-bands of an optical field

E. H. Huntington·G. N. Milford·C. Robilliard·T. C. Ralph·O. Gloeckl·U. L. Andersen·S. Lorenz·G. Leuchs
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Abstract

Quantum optics experiments on "bright" beams typically probe correlations between side-band modes. However the extra degree of freedom represented by this dual mode picture is generally ignored. We demonstrate the experimental operation of a device which can be used to separate the quantum side-bands of an optical field. We use this device to explicitly demonstrate the quantum entanglement between the side-bands of a squeezed beam.

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E. H. Huntington, G. N. Milford, C. Robilliard, T. C. Ralph, O. Gloeckl, U. L. Andersen, S. Lorenz, G. Leuchs. 2005-01-20. Demonstration of the spatial separation of the entangled quantum side-bands of an optical field. https://doi.org/10.1103/physreva.71.041802

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