Nature Communications (Jan 2018)

Improved security bound for the round-robin-differential-phase-shift quantum key distribution

  • Zhen-Qiang Yin,
  • Shuang Wang,
  • Wei Chen,
  • Yun-Guang Han,
  • Rong Wang,
  • Guang-Can Guo,
  • Zheng-Fu Han

DOI
https://doi.org/10.1038/s41467-017-02211-x
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 8

Abstract

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Round-robin differential phase shift QKD protocol offers unique advantages, but typically requires long trains of pulses to encode information. Here, the authors provide an improved security bound which allows operation in the more practical regime of few-pulse trains.