Two-dimensional distributed-phase-reference protocol for quantum key distribution

  title={Two-dimensional distributed-phase-reference protocol for quantum key distribution},
  author={Davide Bacco and Jesper B. Christensen and Mario A. Usuga Castaneda and Yunhong Ding and S{\o}ren Forchhammer and Karsten Rottwitt and Leif Katsuo Oxenl{\o}we},
  journal={Scientific Reports},
Quantum key distribution (QKD) and quantum communication enable the secure exchange of information between remote parties. Currently, the distributed-phase-reference (DPR) protocols, which are based on weak coherent pulses, are among the most practical solutions for long-range QKD. During the last 10 years, long-distance fiber-based DPR systems have been successfully demonstrated, although fundamental obstacles such as intrinsic channel losses limit their performance. Here, we introduce the… 

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