Comment on Quantum teleportation via GHZ-like state

Details Comment on Quantum teleportation via GHZ-like state Comment on Quantum teleportation via GHZ-like state

2010-06-08

arxiv.org/abs/1006.1513v1

Physics

Quantum Physics

2 pages

Scientific paper

Recently Yang et al. [Int. J. Theo. Phys. 48 (2009) 516] have shown that an unknown qubit can be teleported by using a particular GHZ-like state as quantum channel. However, there are several errors in the calculation which lead to incorrect conclusions. The errors have been indicated and corrected. It is also noted that their scheme and the independently proposed teleportation scheme of Zhang et al. [Int. J. Theo. Phys. 48 (2009) 3331] uses quantum channel from the same family and any state of that family may be used for teleportation.

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