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Entanglement Demonstrated Between Remote Ensembles

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A team of researchers at California Institute of Technology in Pasadena and at Bell Labs in Murray Hill, N.J., has reported the entanglement of ensembles of cesium atoms separated by 2.8 m and the storage of the entanglement for up to 1 µs. The investigators note that the separation distance is limited by fiber optic attenuation to approximately 2 km, which may be extended with the development of quantum repeaters, and they suggest that new trapping schemes may enable the storage time to increase to 1 s. In the experimental setup, a 150-ns “write” pulse of 852-nm radiation, detuned by 10...Read full article

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    Published: January 2006
    As We Go To PressBasic ScienceBreaking NewsCalifornia Institute of Technologycesium atomsfiber optic attenuationPresstime BulletinSensors & Detectors

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