Measurement-Device-Independent Quantum Key Distribution Over a 404 km Optical Fiber.

@article{Yin2016MeasurementDeviceIndependentQK,
  title={Measurement-Device-Independent Quantum Key Distribution Over a 404 km Optical Fiber.},
  author={Hua-Lei Yin and Teng-Yun Chen and Zong-Wen Yu and Hui Liu and Lixing You and Yiheng Zhou and Sijing Chen and Yingqiu Mao and Ming-Qi Huang and Wei-Jun Zhang and Hao Chen and Ming Jun Li and D. A. Nolan and Fei Zhou and Xiao Jiang and Zhen Wang and Qiang Zhang and Xiang‐Bin Wang and Jian-Wei Pan},
  journal={Physical review letters},
  year={2016},
  volume={117 19},
  pages={
          190501
        }
}
Measurement-device-independent quantum key distribution (MDIQKD) with the decoy-state method negates security threats of both the imperfect single-photon source and detection losses. Lengthening the distance and improving the key rate of quantum key distribution (QKD) are vital issues in practical applications of QKD. Herein, we report the results of MDIQKD over 404 km of ultralow-loss optical fiber and 311 km of a standard optical fiber while employing an optimized four-intensity decoy-state… 
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