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    High-speed quantum networking by ship

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    Author
    Devitt, SJ; Greentree, AD; Stephens, AM; Van Meter, R
    Date
    2016-11-02
    Source Title
    Scientific Reports
    Publisher
    NATURE PUBLISHING GROUP
    University of Melbourne Author/s
    Greentree, Andrew
    Affiliation
    School of Physics
    Metadata
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    Document Type
    Journal Article
    Citations
    Devitt, S. J., Greentree, A. D., Stephens, A. M. & Van Meter, R. (2016). High-speed quantum networking by ship. SCIENTIFIC REPORTS, 6 (1), https://doi.org/10.1038/srep36163.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/257168
    DOI
    10.1038/srep36163
    Abstract
    Networked entanglement is an essential component for a plethora of quantum computation and communication protocols. Direct transmission of quantum signals over long distances is prevented by fibre attenuation and the no-cloning theorem, motivating the development of quantum repeaters, designed to purify entanglement, extending its range. Quantum repeaters have been demonstrated over short distances, but error-corrected, global repeater networks with high bandwidth require new technology. Here we show that error corrected quantum memories installed in cargo containers and carried by ship can provide a exible connection between local networks, enabling low-latency, high-fidelity quantum communication across global distances at higher bandwidths than previously proposed. With demonstrations of technology with sufficient fidelity to enable topological error-correction, implementation of the quantum memories is within reach, and bandwidth increases with improvements in fabrication. Our approach to quantum networking avoids technological restrictions of repeater deployment, providing an alternate path to a worldwide Quantum Internet.

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