光高斯态干涉产生纠缠的研究

... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies Pub Date : 2011-10-26 DOI:10.1145/2093698.2093805

S. Olivares, M. Delgado, M. Paris

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引用次数: 0

摘要

我们讨论了在平衡分束器中干涉的两个高斯态光的相互作用，并分析了由此产生的二元系统所表现出的相关性。当且仅当两个输入高斯态之间的保真度低于仅取决于其纯度的阈值时，产生非局部量子相关(纠缠)。特别是，我们的结果阐明了压缩作为纠缠的先决条件的作用，并提供了优化无源器件产生纠缠的工具。

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On the generation of entanglement from the interference of Gaussian states of light

We address the interaction of two Gaussian states of light interfering at a balanced beam splitter and analyze the correlations exhibited by the resulting bipartite system. Nonlocal quantum correlations (entanglement) arise if and only if the fidelity between the two input Gaussian states falls under a threshold value depending only on their purities. In particular, our result clarifies the role of squeezing as a prerequisite for entanglement and provide a tool to optimize the generation of entanglement by passive devices.

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... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies

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