Nature Communications (Jan 2021)

Finite-size security of continuous-variable quantum key distribution with digital signal processing

  • Takaya Matsuura,
  • Kento Maeda,
  • Toshihiko Sasaki,
  • Masato Koashi

DOI
https://doi.org/10.1038/s41467-020-19916-1
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 13

Abstract

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While continuous-variable QKD presents many experimental advantages, a full security proof that addresses the most general attacks and digitized signals in the finite-size regime has so far been lacking. Here, the authors fill this gap in the case of a protocol with a binary phase modulation.