Effect of a Nonideal Initial-State of the Ancillary System on Optimal Universal Quantum Cloning

Author： Zhang Zhaoyang   Tang Shiqing   Xie Lijun   Wang Xinwen  

Publisher： Springer Publishing Company

ISSN： 0020-7748

Source： International Journal of Theoretical Physics, Vol.51, Iss.3, 2012-03, pp. : 805-811

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