Quantum secure direct communication with optimal quantum superdense coding by using general four-qubit states

Quantum secure direct communication with optimal quantum superdense coding by using general... From the perspective of quantum circuit, a construction framework and a measurement framework of a general kind of four-qubit states are sketched, respectively. By utilizing the properties of this kind of states, a quantum secure direct communication (QSDC) protocol is put forward, which adopts the idea of optimal quantum superdense coding to achieve a maximal efficiency and high resources capacity. The security of the proposed protocol is discussed in detail and it is proved to be secure theoretically. Moreover, the sufficient and necessary condition of which multipartite states are suitable for optimal quantum superdense coding in quantum secure direct communication is figured out. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Quantum secure direct communication with optimal quantum superdense coding by using general four-qubit states

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Publisher
Springer US
Copyright
Copyright © 2012 by Springer Science+Business Media, LLC
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/s11128-012-0404-9
Publisher site
See Article on Publisher Site

Abstract

From the perspective of quantum circuit, a construction framework and a measurement framework of a general kind of four-qubit states are sketched, respectively. By utilizing the properties of this kind of states, a quantum secure direct communication (QSDC) protocol is put forward, which adopts the idea of optimal quantum superdense coding to achieve a maximal efficiency and high resources capacity. The security of the proposed protocol is discussed in detail and it is proved to be secure theoretically. Moreover, the sufficient and necessary condition of which multipartite states are suitable for optimal quantum superdense coding in quantum secure direct communication is figured out.

Journal

Quantum Information ProcessingSpringer Journals

Published: Apr 10, 2012

References

  • Quantum secure direct communication and deterministic secure quantum communication
    Long, G.L.; Deng, F.G.; Wang, C.; Li, X.H.
  • Secure direct communication based on ping-pong protocol
    Chamoli, A.; Bhandari, C.M.
  • Revisiting the security of secure direct communication based on ping-pong protocol [quantum inf. Process. 8, 347 (2009)]
    Yang, Y.G.; Teng, Y.W.; Chai, H.P.; Wen, Q.Y.
  • Experimental quantum cryptography
    Bennett, C.H.; Bessette, F.; Brassard, G.; Salvail, L.; Smolin, J.

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