Quantum Key Distribution (QKD) experimental assessment

JRC report (EUR 40671, Cerutti, Gentilini, Lewis and Travagnin) on functional testing of the ThinkQuantum QuKy QKD system, which uses a three-state BB84 protocol with decoy states. Over a dark-fibre link with attenuation up to 28 dB the system produced secret keys at up to 12 kbit/s with error rates under 2 %, and an encrypted video stream ran for hours. The introduction links the work to the 2025 Quantum Europe Strategy infrastructure goals.

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