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.
Original language | English |
---|---|
Article number | 1572 |
Number of pages | 13 |
Journal | Entropy |
Volume | 25 |
Issue number | 12 |
DOIs | |
Publication status | Published - 22 Nov 2023 |
Bibliographical note
Funding Information:Funding has been provided through the partnership resource scheme of the EPSRC Quantum Communications Hub grant (EP/T001011/1).
Publisher Copyright:
© 2023 by the authors.
Keywords
- optical phase drift
- polarisation stability
- QKD feasibility study
- quantum bit error rate
- quantum entanglement
- quantum key distribution
- submarine fibre channel