Experimentally demonstrates Bell violation and secure QKD with classical data copropagation, enhancing quantum networks.
We experimentally demonstrate polarization-entangled photon distribution over 50km telecom fiber, achieving robust Bell violation and secure QKD with copropagation of classical data at C-band, enabling cost-effective quantum networks using existing telecom infrastructure.
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Kanseri et al. (2025) studied this question.
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