Work

Quantum correlations for hiding images in noise

Year: 2023

Type: conference-paper

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.

DOI: 10.1117/12.2691065

Authors: Steven D. Johnson, Alex McMillan, Stefan Frick, John Rarity, Miles J. Padgett

Institutions: University of Glasgow, University of Bristol, Universität Innsbruck

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Funder: Engineering and Physical Sciences Research Council