自旋轨道杂化纠缠光子的Hong-Ou-Mandel干涉

IF 5.4 1区 物理与天体物理 Q1 OPTICS
APL Photonics Pub Date : 2023-12-04 DOI:10.1063/5.0167016
Ling Hong, Xiyue Cao, Yuanyuan Chen, Lixiang Chen
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引用次数: 0

摘要

结构光子是经典技术和量子技术的重要资源,特别是自旋轨道混合光子,可以实现从超灵敏计量技术到量子增强信息处理任务的各种实际应用。然而,结合偏振模式和复杂横向空间结构的自旋轨道混合光子的双光子干涉仍未被探索。本文对自旋轨道杂化光子的Hong-Ou-Mandel干涉进行了实验观测。可调谐q板作为自旋轨道耦合器器件,用于制备各种形式的自旋轨道混合纠缠光子。利用时域的匹配度,观察了由入射量子态的对称和反对称特性引起的聚并和反聚并效应。此外,我们论证了量子增强光子偏振齿轮通过HOM干涉的可行性,并从理论上分析了基于相干HOM测量的噪声弹性优势。这些结果为用结构光子进行量子实验提供了另一种途径,可以以紧凑、稳定和有效的方式控制它们的量子干涉。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Hong–Ou–Mandel interference of spin–orbit hybrid entangled photons
Structured photons are a crucial resource in both classical and quantum technologies, particularly in spin–orbit hybrid photons, enabling various practical applications ranging from ultra-sensitive metrology techniques to quantum-enhanced information processing tasks. However, the two-photon interference of spin–orbit hybrid photons, which combines polarization modes and complex transverse spatial structures across the beam profile, remains unexplored. Here, we present an experimental observation of Hong–Ou–Mandel (HOM) interference of spin–orbit hybrid photons. The tunable q-plates that work as spin–orbit coupler devices are used to prepare various forms of spin–orbit hybrid entangled photons. By harnessing the match degree in the temporal domain, the coalescence and anti-coalescence effects resulting from the symmetric and anti-symmetric properties of the incident quantum states are observed. Moreover, we demonstrated the feasibility of quantum-enhanced photon polarization gears through HOM interference and theoretically analyze the noise-resilient advantages based on coherent HOM measurements. These results provide an alternative route toward quantum experiments with structured photons that allows for controlling their quantum interference in a compact, stable, and efficient way.
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来源期刊
APL Photonics
APL Photonics Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
10.30
自引率
3.60%
发文量
107
审稿时长
19 weeks
期刊介绍: APL Photonics is the new dedicated home for open access multidisciplinary research from and for the photonics community. The journal publishes fundamental and applied results that significantly advance the knowledge in photonics across physics, chemistry, biology and materials science.
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