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一类最优相位协变量子克隆

, PP. 583-587

Keywords: 量子信息,量子克隆,最优相位协变量子克隆,腔量子电动力学

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Abstract:

相位协变量子克隆在量子密码术中有重要的应有。利用一般的量子克隆幺正变换形式,得到克隆的保真度。结果表明存在一类最优相位协变量子克隆。对这一类量子克隆的幺正变换,拷贝的保真度最大且相等。基于腔量子电动力学,提出实现这类量子克隆幺正变换的实验方案。

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