Quantum correlations for hiding images in noise

Steven Johnson; Alex McMillan; Stefan Frick; John Rarity; Miles Padgett

doi:10.1117/12.2691065

30 November 2023 Quantum correlations for hiding images in noise

Steven Johnson, Alex McMillan, Stefan Frick, John Rarity, Miles Padgett

Proceedings Volume 12795, Quantum Technology: Driving Commercialisation of an Enabling Science IV; 127950A (2023) https://doi.org/10.1117/12.2691065
Event: SPIE Photonex, 2023, Glasgow, United Kingdom

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.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Steven Johnson, Alex McMillan, Stefan Frick, John Rarity, and Miles Padgett "Quantum correlations for hiding images in noise", Proc. SPIE 12795, Quantum Technology: Driving Commercialisation of an Enabling Science IV, 127950A (30 November 2023); https://doi.org/10.1117/12.2691065

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