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Quantum optics

Multicolour entanglement

Nature Photonics volume 4, pages 1213 (2010) | Download Citation


The entanglement of squeezed light beams is critical for quantum optical applications, but has so far been achieved with only two light beams. Now, researchers have surpassed this restriction and achieved entanglement with three beams of different colours. They also report a finite loss level for disentanglement of one beam from the other two.

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  1. Joseph H. Eberly and John C. Howell are at the Department of Physics and Astronomy, University of Rochester, 600 Wilson Blvd., Rochester, New York 14627, USA.;

    • Joseph H. Eberly
    •  & John C. Howell


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