Efficient entanglement channel construction schemes for a theoretical quantum network model with d-level system

Efficient entanglement channel construction schemes for a theoretical quantum network model with... Quantum entanglement plays an essential role in the field of quantum information and quantum computation. In quantum network, a general assumption for many quantum tasks is that the quantum entanglement has been prior shared among participants. Actually, the distribution of entanglement becomes complex in the network environment. We present a theoretical quantum network model with good scalability. Then, three efficient and perfect schemes for the entanglement channel construction are proposed. Some general results for d-level system are also given. Any two communication sites can construct an entanglement channel via Bell states with the assistance of the intermediate sites on their quantum chain. By using the established entanglement channel, n sites can efficiently and perfectly construct an entanglement channel via an n-qudit cat state. More importantly, an entanglement channel via an arbitrary n-qudit state can also be constructed among any n sites, or even among any t sites where 1 ≤ t ≤ n. The constructed multiparticle entanglement channels have many useful applications in quantum network environment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Efficient entanglement channel construction schemes for a theoretical quantum network model with d-level system

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Publisher
Springer US
Copyright
Copyright © 2011 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/s11128-011-0325-z
Publisher site
See Article on Publisher Site

References

  • Infrastructure for the quantum Internet
    Lloyd, S.
  • The quantum internet
    Kimble, H.J.
  • Quantum entanglement
    Horodecki, R.; Horodecki, P.; Horodecki, M.; Horodecki, K.
  • Controlled teleportation of an arbitrary n-qubit quantum information using quantum secret sharing of classical message
    Zhang, Z.J.
  • Joint remote state preparation via W and W-type states
    Nguyen, B.A.

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