Security of Quantum Key Distribution Protocols using two-way Classical Communication or Weak Coherent Pulses

Barbara Kraus, Cyril Branciard, and Renato Renner

Physical Review Letters A, vol. 75, pp. 012316, Jan 2007, Available at http://arxiv.org/abs/quant-ph/0610151.

We apply the techniques introduced in [Kraus et. al., Phys. Rev. Lett. 95, 080501, 2005] to prove security of quantum key distribution (QKD) schemes using two-way classical post-processing as well as QKD schemes based on weak coherent pulses instead of single-photon pulses. As a result, we obtain improved bounds on the secret-key rate of these schemes.

BibTeX Citation

@article{KrBrRe07,
    author       = {Barbara Kraus and Cyril Branciard and Renato Renner},
    title        = {Security of Quantum Key Distribution Protocols using two-way Classical Communication or Weak Coherent Pulses},
    journal      = {Physical Review Letters A},
    pages        = {012316},
    volume       = {75},
    year         = {2007},
    month        = {1},
    note         = {Available at http://arxiv.org/abs/quant-ph/0610151},
}

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