Abstract This paper presents a quantum network to implement the optimal 1→2 quantum cloning in 2 dimensions, including the optimal asymmetric universal, the optimal symmetric phase-covariant, and the asymmetric real state cloning. By only choosing different angles of the single-qubit rotations, the quantum network can implement three optimal quantum cloning.
Received: 15 May 2008
Revised: 24 June 2008
Accepted manuscript online:
PACS:
03.67.Lx
(Quantum computation architectures and implementations)
Fund: Project supported by the National
Natural Science Foundation of China (Grant No 10674001), and also by
the Program of the Education Department of
Anhui Province (Grant No KJ2007A002).
Cite this article:
Dai Jie-Lin(戴结林) and Zhang Wen-Hai(张文海) A quantum network for implementation of the optimal quantum cloning 2009 Chin. Phys. B 18 426
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