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First Quantum Teleportation Made Between Light and Matter

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GARCHING, Germany, and COPENHAGEN, Denmark, Oct. 10, 2006 -- Researchers in Germany and Denmark have discovered that, for the first time, it is possible to teleport between stationary atoms, which can store quantum states, and light, needed to transmit information over great distances. While the work won't help bring the transporter from "Star Trek" any closer to being a reality, the scientists said it is an important step toward achieving quantum cryptography, or safe communication over long distances, and even making quantum computing practical. Artist's rendering of the web of entanglement connecting two objects in the teleportation experiment...Read full article

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    Published: October 2006
    Glossary
    beam
    1. A bundle of light rays that may be parallel, converging or diverging. 2. A concentrated, unidirectional stream of particles. 3. A concentrated, unidirectional flow of electromagnetic waves.
    beamsplitter
    An optical device for dividing a beam into two or more separate beams. A simple beamsplitter may be a very thin sheet of glass inserted in the beam at an angle to divert a portion of the beam in a different direction. A more sophisticated type consists of two right-angle prisms cemented together at their hypotenuse faces. The cemented face of one prism is coated, before cementing, with a metallic or dielectric layer having the desired reflecting properties, both in the percentage of reflection...
    light
    Electromagnetic radiation detectable by the eye, ranging in wavelength from about 400 to 750 nm. In photonic applications light can be considered to cover the nonvisible portion of the spectrum which includes the ultraviolet and the infrared.
    atomBasic SciencebeambeamsplitterCommunicationslightMax Planck InstituteMPQNBINews & Featuresparticlequantum cryptographyquantum teleportationSensors & DetectorsStar Trekteleportationtransportation

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