Hierarchical quantum information splitting of an arbitrary two-qubit state via the cluster state

Hierarchical quantum information splitting of an arbitrary two-qubit state via the cluster state We propose a new protocol of hierarchical quantum information splitting (HQIS) via two four-qubit cluster state. In the protocol, a boss can asymmetrically distribute an arbitrary two-qubit state, which has not been investigated by the previous papers, to the distant agents in a network. The asymmetric distribution leads to that the agents’ authorities for getting the secret state are hierarchical. In other word, they have different authorities for the boss’s secret state. Moreover, the symmetry feature of cluster state reflects our protocol will have a better extendibility. Thus, we further propose a multiparty HQIS protocol. In our HQIS protocol, the agents only need the single-qubit measurement, which is an appealing advantage in practically implementation. Meanwhile, the present protocol can be modified to implement the threshold-controlled teleportation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Hierarchical quantum information splitting of an arbitrary two-qubit state via the cluster state

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Publisher
Springer US
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/s11128-013-0670-1
Publisher site
See Article on Publisher Site

References

  • Hierarchical quantum-information splitting
    Wang, XW; Xia, LX; Wang, ZY; Zhang, DY

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