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arXiv · 1809.02291

Large scale quantum key distribution: challenges and solutions

Qiang Zhang·Feihu Xu·Yu-Ao Chen·Cheng-Zhi Peng·Jian-Wei Pan
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Abstract

Quantum key distribution (QKD) together with one time pad encoding can provide information-theoretical security for communication. Currently, though QKD has been widely deployed in many metropolitan fiber networks, its implementation in a large scale remains experimentally challenging. This letter provides a brief review on the experimental efforts towards the goal of global QKD, including the security of practical QKD with imperfect devices, QKD metropolitan and backbone networks over optical fiber and satellite-based QKD over free space.

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Qiang Zhang, Feihu Xu, Yu-Ao Chen, Cheng-Zhi Peng, Jian-Wei Pan. 2018-09-07. Large scale quantum key distribution: challenges and solutions. https://doi.org/10.1364/oe.26.024260

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