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arXiv 2007.03883physics.optics
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结构光参量下转换中的角谱传输

Transfer of angular spectrum in parametric down-conversion with structured light

Antonio Z. Khoury, Paulo H. Souto Ribeiro, Kaled Dechoum

摘要:

我们开发了一种形式化的方法,在参数下转换,允许泵浦与结构光束的角谱转移。该方案是基于一个纠缠光子源泵浦的激光束结构与矢量涡旋偏振分布。这产生了一个双光子量子态,其表现出依赖于偏振的横向相关性,可以通过对空间分离的光子的符合测量来访问。计算出的相关性示出呈现典型的矢量光束的自旋-轨道轮廓,然而,分布在单独的测量区域。我们的方法允许设计的泵浦光束矢量的空间结构和测量策略,这些纠缠态的潜在应用,如在量子通信。

英文摘要:

We develop the formal approach to the angular spectrum transfer in parametric down-conversion that allows pumping with a structured beam. The scheme is based on an entangled photon source pumped by a laser beam structured with a vector-vortex polarization profile. This creates a two-photon quantum state exhibiting polarization-dependent transverse correlations that can be accessed through coincidence measurements on the spatially separated photons. The calculated correlations are shown to present a spin-orbit profile typical of vector beams, however, distributed on separate measurement regions. Our approach allows the design of the pump beam vector spatial structure and measurement strategies for potential applications of these entangled states, such as in quantum communication.

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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