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arXiv 1409.0889quant-ph
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自旋轨道laser模的量子和经典可分性

Quantum and classical separability of spin-orbit laser modes

L. J. Pereira, A. Z. Khoury, K. Dechoum

摘要:

本文研究了极化涡旋的量子噪声特性,并结合基于强度的Clauser-Horne-Shimony-Holt不等式讨论了它们的自旋轨道分离性。我们计算了不同输入量子态和相应的强度涨落的不等式。相干性和光子数压缩所起的作用为描述纯态自旋轨道纠缠提供了一个合适的框架。自旋轨道模式的结构不可分离性需要相干性,这是一个关于经典或量子描述的问题。在这两种情况下,都可以通过违反这种基于强度的CHSH不等式来证明。然而,在量子域中,纠缠需要相干性和减少光子数波动。

英文摘要:

In this work we investigate the quantum noise properties of polarization vortices in connection with an intensity based Clauser-Horne-Shimony-Holt inequality for their spin-orbit separability. We evaluate the inequality for different input quantum states and the corresponding intensity fluctuations. The roles played by coherence and photon number squeezing provide a suitable framework for characterizing pure state spin-orbit entanglement. Structural inseparability of the spin-orbit mode requires coherence, an issue concerning either classical or quantum descriptions. In both cases, it can be witnessed by violation of this intensity based CHSH inequality. However, in the quantum domain, entanglement requires both coherence and reduced photon number fluctuations.

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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