Realization of nondestructive multi-atom cluster state analyzer via the cavity input–output process

Realization of nondestructive multi-atom cluster state analyzer via the cavity input–output... We propose a deterministic scheme to realize four-atom and five-atom cluster state analyzers based on the cavity input–output process. In the scheme, we construct a multi-qubit parity analyzer and two cluster state phase analyzers and show that all the orthogonal multi-atom cluster states can be completely identified in a nondestructive way by combining these two kinds of analyzers. The fidelities of analyzers are also calculated, which show that our scheme has a high performance in the intermediate coupling region. Furthermore, the scheme opens promising perspectives for large-scale Bell-state-measurement-based and cluster-state-measurement-based quantum communication and quantum information processing networks. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Realization of nondestructive multi-atom cluster state analyzer via the cavity input–output process

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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/s11128-013-0556-2
Publisher site
See Article on Publisher Site

Abstract

We propose a deterministic scheme to realize four-atom and five-atom cluster state analyzers based on the cavity input–output process. In the scheme, we construct a multi-qubit parity analyzer and two cluster state phase analyzers and show that all the orthogonal multi-atom cluster states can be completely identified in a nondestructive way by combining these two kinds of analyzers. The fidelities of analyzers are also calculated, which show that our scheme has a high performance in the intermediate coupling region. Furthermore, the scheme opens promising perspectives for large-scale Bell-state-measurement-based and cluster-state-measurement-based quantum communication and quantum information processing networks.

Journal

Quantum Information ProcessingSpringer Journals

Published: Mar 16, 2013

References

  • Quantum tasks using six qubit cluster states
    Paul, N; Menon, JV; Karumanchi, S; Muralidharan, S; Panigrahi, PK

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