Journal
OPTICS COMMUNICATIONS
Volume 261, Issue 1, Pages 199-202Publisher
ELSEVIER
DOI: 10.1016/j.optcom.2005.11.060
Keywords
multiparty secret sharing; quantum information; entanglement swapping; cavity QED
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The scheme on multiparty secret sharing of an atomic quantum state information via entanglement swapping in cavity QED [Y.Q. Zhang, X.R. Jin, S. Zhang, Phys. Lett. A 341 (2005) 380] is revisited and accordingly an improved version is proposed. The possible decoherence effect in the original version can be avoided after revision of assuming the prior distribution of entanglement. Moreover, the success probability of teleportation has been raised from 6.25% in the original version to 100% in the present version. (C) 2005 Elsevier B.V. All rights reserved.
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