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  • Comment: There is no unmet requirement of optical coherence for continuous-variable quantum teleportation

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    Author(s)
    Wiseman, HM
    Griffith University Author(s)
    Wiseman, Howard M.
    Year published
    2003
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    Abstract
    It has been argued that continuous-variable quantum teleportation at optical frequencies has not been achieved because the source used (a laser) was not 'truly coherent'. Here it is shown that 'true coherence' is always illusory, as the concept of absolute time on a scale beyond direct human experience is meaningless. A laser is as good a clock as any other, even in principle, and this objection to teleportation experiments is baseless.It has been argued that continuous-variable quantum teleportation at optical frequencies has not been achieved because the source used (a laser) was not 'truly coherent'. Here it is shown that 'true coherence' is always illusory, as the concept of absolute time on a scale beyond direct human experience is meaningless. A laser is as good a clock as any other, even in principle, and this objection to teleportation experiments is baseless.
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    Journal Title
    Journal of Modern Optics
    Volume
    50
    Issue
    11
    Publisher URI
    http://www.informaworld.com/smpp/title~db=all~content=t713191304
    DOI
    https://doi.org/10.1080/09500340308235525
    Copyright Statement
    © 2003 Taylor & Francis. This is the author-manuscript version of the paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
    Subject
    Atomic, molecular and optical physics
    Quantum physics
    Nanotechnology
    Publication URI
    http://hdl.handle.net/10072/6308
    Collection
    • Journal articles

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