Quantum communications feasibility tests over a UK-Ireland 224-km undersea link

Authors :: Amies-King, Ben
Schatz, Karolina P.
Duan, Haofan
Biswas, Ayan
Bailey, Jack
Felvinti, Adrian
Winward, Jaimes
Dixon, Mike
Minder, Mariella
Kumar, Rupesh
Albosh, Sophie
Lucamarini, Marco
Source :: Entropy 25 (12), 1572 (2023). Special Issue on Quantum Communications Networks & Cryptography: From Devices to Industrial Practice (https://www.mdpi.com/journal/entropy/special_issues/quantum_communications_cryptography)
Publication Year :: 2023
Abstract: The future quantum internet will leverage existing communication infrastructures, including deployed optical fibre networks, to enable novel applications that outperform current information technology. In this scenario, we perform a feasibility study of quantum communications over an industrial 224 km submarine optical fibre link deployed between Southport in the United Kingdom (UK) and Portrane in the Republic of Ireland (IE). With a characterisation of phase drift, polarisation stability and arrival time of entangled photons, we demonstrate the suitability of the link to enable international UK-IE quantum communications for the first time.<br />Comment: 11 pages, 6 figures

Database :: arXiv
Journal :: Entropy 25 (12), 1572 (2023). Special Issue on Quantum Communications Networks & Cryptography: From Devices to Industrial Practice (https://www.mdpi.com/journal/entropy/special_issues/quantum_communications_cryptography)
Publication Type :: Report
Accession number :: edsarx.2310.04135
Document Type :: Working Paper
Full Text :: https://doi.org/10.3390/e25121572