Continuous operation of high bit rate quantum key distribution

A R Dixon; Z L Yuan; J F Dynes; A W Sharpe; A J Shields

doi:10.1063/1.3385293

Continuous operation of high bit rate quantum key distribution

Quantum Physics 2010-05-26 v1

Authors: A R Dixon , Z L Yuan , J F Dynes , A W Sharpe , A J Shields

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Abstract

We demonstrate a quantum key distribution with a secure bit rate exceeding 1 Mbit/s over 50 km fiber averaged over a continuous 36-hours period. Continuous operation of high bit rates is achieved using feedback systems to control path length difference and polarization in the interferometer and the timing of the detection windows. High bit rates and continuous operation allows finite key size effects to be strongly reduced, achieving a key extraction efficiency of 96% compared to keys of infinite lengths.

Keywords

quantum key distribution

Cite

@article{arxiv.1005.4573,
  title  = {Continuous operation of high bit rate quantum key distribution},
  author = {A R Dixon and Z L Yuan and J F Dynes and A W Sharpe and A J Shields},
  journal= {arXiv preprint arXiv:1005.4573},
  year   = {2010}
}

Comments

four pages, four figures

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