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    Communications: Quantum teleportation across the Danube (Englisch)

    Nationallizenz
    In: Nature ; 430 , 7002 ; 849  ; 2004
    • ISSN:
      0028-0836
    • Aufsatz (Zeitschrift)  /  Elektronische Ressource

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    Efficient long-distance quantum teleportation is crucial for quantum communication and quantum networking schemes. Here we describe the high-fidelity teleportation of photons over a distance of 600 metres across the River Danube in Vienna, with the optimal efficiency that can be achieved using linear optics. Our result is a step towards the implementation of a quantum repeater, which will enable pure entanglement to be shared between distant parties in a public environment and eventually on a worldwide scale.

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