Quantum correlations for hiding images in noise

Johnson, Steven and McMillan, Alex and Frick, Stefan and Rarity, John and Padgett, Miles (2023) Quantum correlations for hiding images in noise. Proceedings of SPIE - The International Society for Optical Engineering, 12795. 127950A. ISSN 1996-756X (https://doi.org/10.1117/12.2691065)

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Abstract

A limitation of free-space optical communications is the ease with which the information can be intercepted. Overcoming this limitation is possible by hiding the information within the background optical noise that is present in all real-world situations. We demonstrate the limitations of our experimental system for transferring images over free-space using a photon-pair source emitting two correlated beams. The system uses spontaneous parametric down-conversion to create photon-pairs, where one photon contains the spatial information and the other the heralding information.

  • Item type:Article
    ID code:89785
    Dates:
    Date
    Event
    30 November 2023
    Published
    1 October 2023
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:01 Jul 2024 13:51
    Last modified:01 Jul 2024 13:51
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/89785
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