Generation and detection of spin-orbit coupled neutron beams
Generation and detection of spin-orbit coupled neutron beams
复制标题
自旋轨道耦合中子束的产生和检测
DOI：
--
复制
发表时间：
2019
影响因子：
11.1
通讯作者：
D. Pushin
中科院分区：
文献类型：
--
作者：
D. Sarenac;C. Kapahi;Wangchun Chen;C. Clark;D. Cory;M. Huber;I. Taminiau;K. Zhernenkov;D. Pushin
光学和物质波轨道角动量（OAM）光束和自旋相关OAM光束的制备和表征技术受到了广泛的关注。它们已被证明在广泛的应用中是有用的，如显微镜，量子信息处理，材料表征和通信协议。在这里，我们展示了自旋轨道束和自旋轨道束与中子晶格的观察。中子不带电荷，质量很大，是自然界的探针，与光子和电子互补。这里所示的技术使中子OAM应用于材料表征和基础物理。光的自旋-轨道耦合在纳米光学和等离子体学中已经崭露头角，并且是拓扑光子学和手征量子光学的关键组成部分。我们展示了一个基本的工具，将类似的影响到中子光学：产生和检测的中子束与耦合的自旋和轨道角动量。3 He中子自旋过滤器与特定取向的三角形线圈一起使用，以制备具有自旋-轨道相关晶格的中子束，如其自旋相关强度分布所示。这些相关性可以针对特定的应用，如拓扑材料的中子研究。
Significance Extensive interest has been placed on the techniques to prepare and characterize optical and matter wave orbital angular momentum (OAM) beams and spin correlated OAM beams. They have been shown to be useful in a wide range of applications such as microscopy, quantum information processing, material characterization, and communication protocols. Here we demonstrate an observation of spin-orbit beams and lattices of spin-orbit beams with neutrons. Neutrons, which do not possess a charge and have significant mass, are probes of nature that are complementary to photons and electrons. The techniques shown here enable neutron OAM applications in material characterization and fundamental physics. Spin-orbit coupling of light has come to the fore in nanooptics and plasmonics, and is a key ingredient of topological photonics and chiral quantum optics. We demonstrate a basic tool for incorporating analogous effects into neutron optics: the generation and detection of neutron beams with coupled spin and orbital angular momentum. The 3He neutron spin filters are used in conjunction with specifically oriented triangular coils to prepare neutron beams with lattices of spin-orbit correlations, as demonstrated by their spin-dependent intensity profiles. These correlations can be tailored to particular applications, such as neutron studies of topological materials.
影响因子：
8.6
作者：
Bliokh, Konstantin Yu.;Bliokh, Yury P.;Nori, Franco
通讯作者：
Nori, Franco