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设计最优量子克隆机的通用方案

General scheme for designing the optimal quantum cloning machine
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摘要 本文利用量子克隆机(QCM)在Bloch球表象中的描述,导出了最优态有关量子克隆机的通用幺正变换,该幺正变换仅需6个自由参数,它们的值与具体的输入态分布有关,可由Fiurasek最优化条件确定. We develop a general form of unitary transformation for optimal quantum cloning machine in Bloch sphere representation. The unitary transformation provided with six free parameters, which can be solved by Fiurasek optimal conditon for a given set of states.
作者 吴飞 吴小华
出处 《四川大学学报(自然科学版)》 CAS CSCD 北大核心 2011年第5期1087-1094,共8页 Journal of Sichuan University(Natural Science Edition)
关键词 最优量子克隆 Bloch球表象 量子比特系统 平均保真度 optimal cloning machine, bloch sphere representation, qbit system, average fedility
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参考文献13

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