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Showing 1–7 of 7 results
Advanced filters: Author: D. N. Matsukevich Clear advanced filters

  • Here it is shown, both theoretically and experimentally, that non-local correlations between entangled quantum particles can be used for a new cryptographic application — the generation of certified private random numbers — that is impossible to achieve classically. The results have implications for future device-independent quantum information experiments and for addressing fundamental issues regarding the randomness of quantum theory.

    • S. Pironio
    • A. Acín
    • C. Monroe
    Research
    Nature
    Volume: 464, P: 1021-1024

  • Two independent experiments that demonstrate memories for single quantum excitations with storage times on the order of a millisecond—two orders of magnitude longer than reported so far—should help to bring practical long-distance quantum-communication networks a step closer.

    • R. Zhao
    • Y. O. Dudin
    • A. Kuzmich
    Research
    Nature Physics
    Volume: 5, P: 100-104

  • Entanglement between two single-ion quantum memories separated by a metre has been achieved. The use of single ions, rather than atomic ensembles, has distinct advantages for subsequent quantum operations: long coherence times, enhanced stability, and ease of measurement without ejection of the ion from the trap.

    • D. L. Moehring
    • P. Maunz
    • C. Monroe
    Research
    Nature
    Volume: 449, P: 68-71

  • Atomic transitions afford a convenient way of storing quantum bits. However, there are few ground-state transitions suitable for use with light at telecommunication wavelengths. Now, researchers show that ensembles of cold rubidium atoms not only make good quantum memories, but can also noiselessly convert the emitted photons into and out of the telecoms band.

    • A. G. Radnaev
    • Y. O. Dudin
    • T. A. B. Kennedy
    Research
    Nature Physics
    Volume: 6, P: 894-899

  • Many quantum protocols require fast, remote entanglement generation to outperform their classical counterparts. A modular solution is now reported, using trapped ions that are remotely entangled through photons.

    • D. Hucul
    • I. V. Inlek
    • C. Monroe
    Research
    Nature Physics
    Volume: 11, P: 37-42