Experimental Decoy State Quantum Key Distribution with Unconditional Security Incorporating Finite Statistics

Jun Hasegawa; Masahito Hayashi; Tohya Hiroshima; Akihiro Tanaka; Akihisa Tomita

Experimental Decoy State Quantum Key Distribution with Unconditional Security Incorporating Finite Statistics

Quantum Physics 2007-05-23 v1

Authors: Jun Hasegawa , Masahito Hayashi , Tohya Hiroshima , Akihiro Tanaka , Akihisa Tomita

Comments: 5 pages, 1 figure

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Abstract

We propose the improved decoy state quantum key distribution incorporating finite statistics due to the finite code length and report on its demonstration. In our experiment, four different intensities including the vacuum state for optimal pulses are used and the key generation rate of 200 bps is achieved in the 20 km telecom optical fiber transmission keeping the eavesdropper's mutual information with the final key less than 2^{-9}.

Keywords

quantum key distribution quantum state discrimination quantum cryptography

Cite

@article{arxiv.0705.3081,
  title  = {Experimental Decoy State Quantum Key Distribution with Unconditional Security Incorporating Finite Statistics},
  author = {Jun Hasegawa and Masahito Hayashi and Tohya Hiroshima and Akihiro Tanaka and Akihisa Tomita},
  journal= {arXiv preprint arXiv:0705.3081},
  year   = {2007}
}

Experimental Decoy State Quantum Key Distribution with Unconditional Security Incorporating Finite Statistics

Abstract

Keywords

Cite

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