Generation of three-atom singlet state in a bimodal cavity via quantum Zeno dynamics

Generation of three-atom singlet state in a bimodal cavity via quantum Zeno dynamics We propose an efficient scheme for generation of three-atom singlet state in a bimodal cavity based on quantum Zeno dynamics and the large detuning condition. The influence of decoherence induced by cavity decay and atomic spontaneous emission is also discussed by numerical calculation. The advantages of the scheme are that the initial input states of atoms are not entangled and the fidelity is insensitive to cavity decay and atomic spontaneous emission due to no exciting the cavity fields during the whole evolution and the large detuning condition. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Generation of three-atom singlet state in a bimodal cavity via quantum Zeno dynamics

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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/s11128-012-0382-y
Publisher site
See Article on Publisher Site

Abstract

We propose an efficient scheme for generation of three-atom singlet state in a bimodal cavity based on quantum Zeno dynamics and the large detuning condition. The influence of decoherence induced by cavity decay and atomic spontaneous emission is also discussed by numerical calculation. The advantages of the scheme are that the initial input states of atoms are not entangled and the fidelity is insensitive to cavity decay and atomic spontaneous emission due to no exciting the cavity fields during the whole evolution and the large detuning condition.

Journal

Quantum Information ProcessingSpringer Journals

Published: Mar 15, 2012

References

  • Can quantum-mechanical description of physical reality be considered complete?
    Einstein, A.; Podolsky, B.; Rosen, N.
  • Controlled quantum secure direct communication using a non-symmetric quantum channel with quantum superdense coding
    Xia, Y.; Song, H.S.
  • Linear optical protocol for preparation of N-photon Greenberger-Horne-Zeilinger state with conventional photon detectors
    Xia, Y.; Song, J.; Song, H.S.
  • One-step implementation of the Toffoli gate via quantum Zeno dynamics
    Shao, X.Q.; Wang, H.F.; Chen, L.; Zhang, S.; Yeon, K.H.

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