英国-爱尔兰224公里海底链路的量子通信可行性测试

Quantum Communications Feasibility Tests over a UK-Ireland 224 km Undersea Link.

作者信息

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

机构信息

School of Physics, Engineering & Technology and York Centre for Quantum Technologies, Institute for Safe Autonomy, University of York, York YO10 5FT, UK.

euNetworks Fiber UK Limited, 5 Churchill Place, London E14 5HU, UK.

出版信息

Entropy (Basel). 2023 Nov 22;25(12):1572. doi: 10.3390/e25121572.

DOI:10.3390/e25121572

PMID:38136452

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10743312/

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 the arrival time of entangled photons, we demonstrate the suitability of the link to enable international UK-IE quantum communications for the first time.

摘要

未来的量子互联网将利用现有的通信基础设施，包括已部署的光纤网络，以实现优于当前信息技术的新型应用。在这种情况下，我们对一条部署在英国南港和爱尔兰共和国波特拉尼之间、长达224公里的工业海底光纤链路上的量子通信进行了可行性研究。通过对相位漂移、偏振稳定性和纠缠光子到达时间的表征，我们首次证明了该链路适用于实现英国与爱尔兰之间的国际量子通信。