Unconditional security proof of long-distance continuous-variable quantum key distribution with discrete modulation

Anthony Leverrier; Philippe Grangier

doi:10.1103/PhysRevLett.102.180504

Unconditional security proof of long-distance continuous-variable quantum key distribution with discrete modulation

Quantum Physics 2010-03-15 v1

Authors: Anthony Leverrier , Philippe Grangier

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Abstract

We present a continuous-variable quantum key distribution protocol combining a discrete modulation and reverse reconciliation. This protocol is proven unconditionally secure and allows the distribution of secret keys over long distances, thanks to a reverse reconciliation scheme efficient at very low signal-to-noise ratio.

Keywords

quantum key distribution quantum cryptography

Cite

@article{arxiv.0812.4246,
  title  = {Unconditional security proof of long-distance continuous-variable quantum key distribution with discrete modulation},
  author = {Anthony Leverrier and Philippe Grangier},
  journal= {arXiv preprint arXiv:0812.4246},
  year   = {2010}
}

Comments

4 pages, 2 figures

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