Free-space continuous-variable quantum key distribution of unidimensional Gaussian modulation using polarized coherent states in an urban environment

Author(s): Shi-Yang Shen, Ming-Wei Dai, Xue-Tao Zheng, Qi-Yao Sun, Guang-Can Guo, and Zheng-Fu Han
An experiment evaluating continuous-variable quantum key distribution (CV-QKD) in an urban environment free-space channel has been accomplished using a single homodyne detector. This is based on Gaussian modulation with coherent states in the polarization degree of freedom. We achieved a QKD distanc...
[Phys. Rev. A 100, 012325] Published Tue Jul 16, 2019

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