Three schemes of remote information concentration based on ancilla-free phase-covariant telecloning

Three schemes of remote information concentration based on ancilla-free phase-covariant telecloning In this paper, remote information concentration is investigated which is the reverse process of the $$1\rightarrow 3$$ 1 → 3 optimal asymmetric economical phase-covariant telecloning (OAEPCT). The OAEPCT is different from the reverse process of optimal universal telecloning. It is shown that the quantum information via $$1\rightarrow 3$$ 1 → 3 OAEPCT procedure can be remotely concentrated back to a single qubit with a certain probability via several quantum channels. In these schemes, we adopt Bell measurement to measure the joint systems and use projected measurement and positive operator-valued measure to recover the original quantum state. The results shows non-maximally entangled quantum resource can be applied to information concentration. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Three schemes of remote information concentration based on ancilla-free phase-covariant telecloning

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Publisher
Springer Journals
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/s11128-013-0712-8
Publisher site
See Article on Publisher Site

Abstract

In this paper, remote information concentration is investigated which is the reverse process of the $$1\rightarrow 3$$ 1 → 3 optimal asymmetric economical phase-covariant telecloning (OAEPCT). The OAEPCT is different from the reverse process of optimal universal telecloning. It is shown that the quantum information via $$1\rightarrow 3$$ 1 → 3 OAEPCT procedure can be remotely concentrated back to a single qubit with a certain probability via several quantum channels. In these schemes, we adopt Bell measurement to measure the joint systems and use projected measurement and positive operator-valued measure to recover the original quantum state. The results shows non-maximally entangled quantum resource can be applied to information concentration.

Journal

Quantum Information ProcessingSpringer Journals

Published: Dec 17, 2013

References

  • Joint remote preparation of an arbitrary three-qubit state
    Luo, MX; Chen, XB; Ma, SY; Niu, XX; Yang, YX

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