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Drone-based quantum key distribution
Xiao-Hui Tian, Ran Yang, Ji-Ning Zhang, Hua Yu, Yao Zhang, Pengfei Fan, Mengwen Chen, Changsheng Gu, Xin Ni, Mingzhe Hu, Xun Cao, Xiaopeng Hu, Gang Zhao, Yan-Qing Lu, Zhi-Jun Yin, Hua-Ying Liu, Yan-Xiao Gong, Zhenda Xie, Shi-Ning Zhu
Résumé : Drone-based quantum link has the potential to realize mobile quantum network, and entanglement distribution has been demonstrated using one and two drones. Here we report the first drone-based quantum key distribution (QKD), with average secure key rate larger than 8 kHz using decoy-state BB84 protocol with polarization coding. Compact acquisition, pointing, and tracking (APT) system and QKD modules are developed and loaded on a home-made octocopter, within takeoff weight of 30 kg. A robust link is established between the flying octocopter and a ground station separated 200 meters away and real-time QKD is performed for 400 seconds. This work shows potential of drone-based quantum communication for the future mobile quantum networks.