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arXiv 1605.07375quant-ph
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光参量过程中双模高斯光场的非经典性与纠缠的相互作用

Interplay of nonclassicality and entanglement of two-mode Gaussian fields generated in optical parametric processes

Ievgen I. Arkhipov, Jan Peřina, Jan Peřina, Adam Miranowicz

摘要:

研究了一般非经典双模高斯态在分束器中的行为。分析了输入输出态的单模非经典性和双模纠缠,并给出了相应的量子数。这些量词来自线性酉双模变换的局部和全局不变量,使得输入(或输出)局部非经典性测度和纠缠测度之和给出全局不变量。这个不变量量化了全局非经典性资源。分析了入射噪声孪生光束、单模噪声压缩真空态以及同时包含压缩态和孪生光束的态在分束器作用下局域非经典性和纠缠的相互转换。一个有趣的非经典输出状态丰富的挂毯预测。

英文摘要:

The behavior of general nonclassical two-mode Gaussian states at a beam splitter is investigated. Single-mode nonclassicality as well as two-mode entanglement of both input and output states are analyzed suggesting their suitable quantifiers. These quantifiers are derived from local and global invariants of linear unitary two-mode transformations such that the sum of input (or output) local nonclassicality measures and entanglement measure gives a global invariant. This invariant quantifies the global nonclassicality resource. Mutual transformations of local nonclassicalities and entanglement induced by the beam splitter are analyzed considering incident noisy twin beams, single-mode noisy squeezed vacuum states, and states encompassing both squeezed states and twin beams. A rich tapestry of interesting nonclassical output states is predicted.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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