Demonstration of the spatial separation of the entangled quantum sidebands of 
an optical field

Huntington, EH; Milford, GN; Robilliard, C; Ralph, TC; Glockl, O; Andersen, Ulrik L.; Lorenz, S; Leuchs, Gerd

doi:10.1103/PhysRevA.71.041802

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Demonstration of the spatial separation of the entangled quantum sidebands of an optical field

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Andersen, Ulrik L.
Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society;

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Leuchs, Gerd
Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Huntington, E., Milford, G., Robilliard, C., Ralph, T., Glockl, O., Andersen, U. L., et al. (2005). Demonstration of the spatial separation of the entangled quantum sidebands of an optical field. PHYSICAL REVIEW A, 71(4): 041802. doi:10.1103/PhysRevA.71.041802.

Cite as: https://hdl.handle.net/21.11116/0000-0002-97B3-9

Abstract

Quantum optics experiments on "bright" beams are based on the spectral analysis of field fluctuations and typically probe correlations between radio-frequency sideband 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 sidebands of an optical field. We use this device to explicitly demonstrate the quantum entanglement between the sidebands of a squeezed beam.