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连续变量量子纠缠态的非对称量子克隆

Quantum Cloning of Continuous-variable Entangled States
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摘要 该文讨论了连续变量量子纠缠态非对称克隆过程,从理论上讨论了在Locale-cloner方案中,入射和出射分束器的反射率可变情况下的纠缠态克隆,并利用纠缠不可分判据分析了所获得的非对称克隆纠缠态的纠缠特性。结果指出,克隆得到的两组纠缠态的纠缠特性不相同。 In this paper, we discuss the asymmetric cloning process of continuous variable entangled states. By changing the reflectivity of both beam splitters, we theoretically analyze the entanglement properties of the output entangled states of the Local e-cloner using the CV entanglement criteria. It is shown that the entanglement degrees of two cloned entangled states are different.
出处 《量子光学学报》 CSCD 北大核心 2009年第2期164-167,共4页 Journal of Quantum Optics
基金 国家自然科学基金(10774096) 教育部博士点基金
关键词 量子不可克隆定理 量子纠缠态 纠缠判据 noncloning theorem entangled states CV entanglement criteria
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参考文献9

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