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Quantum key distribution spans 300km with multi-core fiber integration

By PulseAugur Editorial · [1 sources] ·

Researchers have successfully demonstrated a quantum key distribution (QKD) system spanning over 300 kilometers, integrating commercial QKD devices with advanced superconducting nanowire single-photon detectors. This system was tested over a deployed fiber network, including a segment of multi-core fiber designed to simulate metropolitan access links, while co-existing with classical network traffic. The experiment highlights the practical challenges and potential applications of QKD in future hybrid quantum-classical communication networks, particularly concerning throughput variations and their impact on encrypted data transmission. AI

RANK_REASON The cluster contains a research paper detailing a technical experiment and its findings. [lever_c_demoted from research: ic=1 ai=0.1]

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COVERAGE [1]

  1. arXiv cs.LG TIER_1 English(EN) · Martin Clason, Joakim Argillander, Didrik Bergstr\"om, Daniel Spegel-Lexne, Giulio Foletto, Ashraf El Hassan, Mohamed Bourennane, Onur G\"unl\"u, Katia Gallo, Rui Lin, Guilherme B. Xavier ·

    Deployed trusted-node quantum key distribution over 300 km with a multi-core fiber access link

    arXiv:2606.06107v1 Announce Type: cross Abstract: Quantum key distribution (QKD) is increasingly considered for deployment in realistic communication networks, where long distances, heterogeneous fiber infrastructure, and coexistence with classical traffic present substantial cha…

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