Preprint
Jul 2026
Quantum key distribution over a 2 km free-space channel with a high secure key rate
Free-space quantum key distribution (QKD) provides crucial advantages, including mobility and deployment flexibility, for securing next-generation communication networks. However, practical free-space implementations face major challenges, such as muilti-photon vulnerabilities, spatial mode mismatch, and atmospheric tu...
Kyungdeuk Park, Dongkyu Kim, Dong-Gil Im et al.
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