Quantum Privacy Amplification and the Security of Quantum Cryptography over Noisy Channels.

@article{Deutsch1996QuantumPA,
  title={Quantum Privacy Amplification and the Security of Quantum Cryptography over Noisy Channels.},
  author={Deutsch and Ekert and J{\'o}zsa and Macchiavello and Popescu and Sanpera},
  journal={Physical review letters},
  year={1996},
  volume={77 13},
  pages={2818-2821}
}
Existing quantum cryptographic schemes are not, as they stand, operable in the presence of noise on the quantum communication channel. Although they become operable if they are supplemented by classical privacy-amplification techniques, the resulting schemes are difficult to analyse and have not been proved secure. We introduce the concept of quantum privacy amplification and a cryptographic scheme incorporating it which is provably secure over a noisy channel. The scheme uses an ‘entanglement… CONTINUE READING

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