Fault tolerant quantum key distributions using entanglement swapping of GHZ states over collective-noise channels

Fault tolerant quantum key distributions using entanglement swapping of GHZ states over... This work proposes two fault tolerant quantum key distribution (QKD) protocols. Each of which is robust under one kind of collective noises: collective-dephasing noise and collective-rotation noise, respectively. Due to the use of the entanglement swapping of Greenberger–Horne–Zeilinger (GHZ) state as well as the decoy logical qubits, the new protocols provide the best qubit efficiency among the existing fault tolerant QKD protocols over the same collective-noise channel. The receiver simply performs two Bell measurements to obtain the raw key. Moreover, the proposed protocols are free from several well-known attacks and can also be secure over a lossy channel. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Fault tolerant quantum key distributions using entanglement swapping of GHZ states over collective-noise channels

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Publisher
Springer Journals
Copyright
Copyright © 2013 by Springer Science+Business Media New York
Subject
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
ISSN
1570-0755
eISSN
1573-1332
D.O.I.
10.1007/s11128-013-0593-x
Publisher site
See Article on Publisher Site

Abstract

This work proposes two fault tolerant quantum key distribution (QKD) protocols. Each of which is robust under one kind of collective noises: collective-dephasing noise and collective-rotation noise, respectively. Due to the use of the entanglement swapping of Greenberger–Horne–Zeilinger (GHZ) state as well as the decoy logical qubits, the new protocols provide the best qubit efficiency among the existing fault tolerant QKD protocols over the same collective-noise channel. The receiver simply performs two Bell measurements to obtain the raw key. Moreover, the proposed protocols are free from several well-known attacks and can also be secure over a lossy channel.

Journal

Quantum Information ProcessingSpringer Journals

Published: Jun 1, 2013

References

  • New efficient three-party quantum key distribution protocols
    Shih, HC; Lee, KC; Hwang, T
  • Provably secure three-party authenticated quantum key distribution protocols
    Hwang, T; Lee, KC; Li, CM
  • Quantum dialogue protocols immune to collective noise
    Yang, C.-W.; Hwang, T.

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