Quantum correlations for hiding images in noise

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

doi:10.1117/12.2691065

Quantum correlations for hiding images in noise

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

^*Corresponding author for this work

Physics

Research output: Contribution to journal › Conference article › peer-review

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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.

Original language	English
Article number	127950A
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	12795
DOIs	https://doi.org/10.1117/12.2691065
Publication status	Published - 30 Nov 2023
Event	Quantum Technology: Driving Commercialisation of an Enabling Science IV 2023 - Glasgow, United Kingdom Duration: 25 Oct 2023 → 26 Oct 2023

Keywords

Correlated photon source
Quantum imaging
Single photon imaging
Steganography

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10.1117/12.2691065

Johnson-etal-Quantum-correlations-for-hiding-images-in-noise
Copyright © 2023 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Final published version, 2.68 MBLicence: Strath_1

Cite this

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AB - 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.

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T2 - Quantum Technology: Driving Commercialisation of an Enabling Science IV 2023

Y2 - 25 October 2023 through 26 October 2023

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Quantum correlations for hiding images in noise

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