We demonstrate a 4-dimensional path-encoded QKD system over a 52-km multi-core fieldinstalled fibre. The 4D-QKD has a 68.5 kbit/s secret key rate, which is 118% higher than the equivalent 2D-QKD over the same link, owing to the higher dimensionality and greater noise resilience.
4-Dimensional Quantum Key Distribution Protocol over 52-km Deployed Multicore Fibre / Zahidy M.; Ribezzo D.; De Lazzari C.; Vagniluca I.; Biagi N.; Occhipinti T.; Oxenlowe L.K.; Galili M.; Hayashi T.; Antonelli C.; Mecozzi A.; Zavatta A.; Bacco D.. - ELETTRONICO. - (2022), pp. 0-0. ( 2022 European Conference on Optical Communication, ECOC 2022 che 2022).
4-Dimensional Quantum Key Distribution Protocol over 52-km Deployed Multicore Fibre
Ribezzo D.;Bacco D.
2022
Abstract
We demonstrate a 4-dimensional path-encoded QKD system over a 52-km multi-core fieldinstalled fibre. The 4D-QKD has a 68.5 kbit/s secret key rate, which is 118% higher than the equivalent 2D-QKD over the same link, owing to the higher dimensionality and greater noise resilience.
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