Quantum information processing through a genuine five-qubit entangled state in cavity QED

Quantum information processing through a genuine five-qubit entangled state in cavity QED The utility of a five-qubit entangled state for quantum teleportation, quantum state sharing and superdense coding is investigated. The state can be utilized for perfect teleportation and quantum state sharing of an arbitrary single- and two-qubit state. The capacity of superdense coding of the state reaches the “Holevo bound”, which means that five classical bits can be transmitted by sending three qubits. The preparation of the five-qubit state and detection of the multipartite states in cavity QED are discussed. The distinct advantage of the feasible cavity QED technology that we use is insensitive to the thermal field and the cavity decay. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Quantum information processing through a genuine five-qubit entangled state in cavity QED

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Publisher
Springer Journals
Copyright
Copyright © 2010 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/s11128-010-0164-3
Publisher site
See Article on Publisher Site

Abstract

The utility of a five-qubit entangled state for quantum teleportation, quantum state sharing and superdense coding is investigated. The state can be utilized for perfect teleportation and quantum state sharing of an arbitrary single- and two-qubit state. The capacity of superdense coding of the state reaches the “Holevo bound”, which means that five classical bits can be transmitted by sending three qubits. The preparation of the five-qubit state and detection of the multipartite states in cavity QED are discussed. The distinct advantage of the feasible cavity QED technology that we use is insensitive to the thermal field and the cavity decay.

Journal

Quantum Information ProcessingSpringer Journals

Published: Mar 10, 2010

References

  • Multiparty secret sharing of quantum information based on entanglement swapping
    Li, Y.M.; Zhang, K.S.; Peng, K.C.
  • Generation of entangled states in cavity QED
    Ye, L.; Yu, L.B.; Guo, G.C.

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