Comment on “Quantum Teleportation of Eight-Qubit State via Six-Qubit Cluster State”

Comment on “Quantum Teleportation of Eight-Qubit State via Six-Qubit Cluster State” Recently, Zhao et al. (Int. J. Theor. Phys. 57, 516–522 2018) have proposed a scheme for quantum teleportation of an eight-qubit quantum state using a six qubit cluster state. In this comment, it’s shown that the quantum resource (multi-partite entangled state used as the quantum channel) used by Zhao et al., is excessively high and the task can be performed using any two Bell states as the task can be reduced to the teleportation of an arbitrary two qubit state. Further, a trivial conceptual mistake made by Zhao et al., in the description of the quantum channel has been pointed out. It’s also mentioned that recently a trend of proposing teleportation schemes with excessively high quantum resources has been observed and the essence of this comment is applicable to all such proposals. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Theoretical Physics Springer Journals

Comment on “Quantum Teleportation of Eight-Qubit State via Six-Qubit Cluster State”

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Physics; Physics, general; Quantum Physics; Elementary Particles, Quantum Field Theory; Theoretical, Mathematical and Computational Physics
ISSN
0020-7748
eISSN
1572-9575
D.O.I.
10.1007/s10773-018-3746-y
Publisher site
See Article on Publisher Site

Abstract

Recently, Zhao et al. (Int. J. Theor. Phys. 57, 516–522 2018) have proposed a scheme for quantum teleportation of an eight-qubit quantum state using a six qubit cluster state. In this comment, it’s shown that the quantum resource (multi-partite entangled state used as the quantum channel) used by Zhao et al., is excessively high and the task can be performed using any two Bell states as the task can be reduced to the teleportation of an arbitrary two qubit state. Further, a trivial conceptual mistake made by Zhao et al., in the description of the quantum channel has been pointed out. It’s also mentioned that recently a trend of proposing teleportation schemes with excessively high quantum resources has been observed and the essence of this comment is applicable to all such proposals.

Journal

International Journal of Theoretical PhysicsSpringer Journals

Published: Apr 14, 2018

References

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