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  • Experimental semi-device-independent certification of entangled measurements

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    Author(s)
    Bennet, Adam
    Vertesi, Tamas
    Saunders, Dylan J
    Brunner, Nicolas
    Pryde, GJ
    Griffith University Author(s)
    Pryde, Geoff
    Year published
    2014
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    Abstract
    Certifying the entanglement of quantum states with Bell inequalities allows one to guarantee the security of quantum information protocols independently of imperfections in the measuring devices. Here, we present a similar procedure for witnessing entangled measurements, which play a central role in many quantum information tasks. Our procedure is termed semi-device-independent, as it uses uncharacterized quantum preparations of fixed Hilbert space dimension. Using a photonic setup, we experimentally certify an entangled measurement using only measurement statistics. We also apply our techniques to certify unentangled but ...
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    Certifying the entanglement of quantum states with Bell inequalities allows one to guarantee the security of quantum information protocols independently of imperfections in the measuring devices. Here, we present a similar procedure for witnessing entangled measurements, which play a central role in many quantum information tasks. Our procedure is termed semi-device-independent, as it uses uncharacterized quantum preparations of fixed Hilbert space dimension. Using a photonic setup, we experimentally certify an entangled measurement using only measurement statistics. We also apply our techniques to certify unentangled but nevertheless inherently quantum measurements.
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    Journal Title
    Physical Review Letters
    Volume
    113
    DOI
    https://doi.org/10.1103/PhysRevLett.113.080405
    Copyright Statement
    © 2014 American Physical Society. This is the author-manuscript version of this 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
    Mathematical sciences
    Physical sciences
    Quantum information, computation and communication
    Quantum optics and quantum optomechanics
    Engineering
    Publication URI
    http://hdl.handle.net/10072/66802
    Collection
    • Journal articles

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