Simple security proof of quantum key distribution based on complementarity

Details Simple security proof of quantum key distribution based on complementarity Simple security proof of quantum key distribution based on complementarity

Apr 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009njph...11d5018k&link_type=abstract

New Journal of Physics, Volume 11, Issue 4, pp. 045018 (2009).

Physics

7

Scientific paper

We present an approach to the unconditional security of quantum key distribution protocols based on a complementarity argument. The approach is applicable to, but not limited to, every case that has been treated via the argument by Shor and Preskill based on entanglement distillation, with a benefit of decoupling of the error correction from the privacy amplification. It can also treat cases with uncharacterized apparatuses. We derive a secure key rate for the Bennett-Brassard-1984 protocol with an arbitrary source characterized only by a single parameter representing the basis dependence.

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