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相关论文: Spin-Textured Neutron Beams with Orbital Angular M…

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Twisted light with orbital angular momentum (OAM) has been extensively studied for applications in quantum and classical communications, microscopy, and optical micromanipulation. Ejecting the naturally high angular momentum whispering…

Orbital angular momentum (OAM) of light represents a fundamental optical freedom that can be exploited to manipulate quantum state of atoms. In particular, it can be used to realize spin-orbital-angular-momentum (SOAM) coupling in cold…

We reveal for the first time a direct relationship between the diffraction of optical beams and their carrying orbital angular momentum (OAM). We experimentally demonstrate a novel phenomenon that the anisotropic diffraction can be induced…

光学 · 物理学 2019-09-17 Guo Liang , Huicong Zhang , Lei Fang , Qian Shou , Wei Hu , Qi Guo

We introduce a new method to generate and tune the optical orbital angular momentum of a focused Gaussian beam passing through the optical superlattice under the electro-optic effect. The orbital angular momentum (OAM) arises from the curl…

光学 · 物理学 2011-08-29 Jie Wang , Jianhong Shi , Linghao Tian , Xianfeng Chen

Optical vortex beams are a type of topological light characterized by their inherent orbital angular momentum, leading to the propagation of a spiral-shaped wavefront. In this study, we focus on two-dimensional electrons with Rashba and…

介观与纳米尺度物理 · 物理学 2025-12-04 Shunki Yamamoto , Masahiro Sato , Satoshi Fujimoto , Takeshi Mizushima

Optical beams carrying orbital angular momentum (OAM) have gained significant interest due to their unique properties, enhancing various communication systems and enabling applications such as the characterization of material or molecular…

光学 · 物理学 2024-12-18 Ju-Young Kim , Minhaeng Cho

We report on the possibility of manipulating magnetic materials by using itinerant orbital angular momentum to produce out-of-plane spin polarization in van der Waals heterostructures. Employing a real-space formulation of the OAM operator…

介观与纳米尺度物理 · 物理学 2025-07-18 Luis M. Canonico , Jose H. García , Aron W. Cummings , Stephan Roche

We investigate the intriguing phenomenon of beta decay of a free neutron in a non-plane-wave(structured) state. Our analysis covers three types of states: unpolarized vortex (Bessel) neutrons that possess nonzero orbital angular momentum…

高能物理 - 唯象学 · 物理学 2025-02-28 I. Pavlov , A. Chaikovskaia , D. Karlovets

Orbitronics harnesses non-equilibrium densities and flows of electrons orbital angular momentum (OAM). Although the OAM must be long lived to be useful in information processing, the mechanisms leading to OAM non-conservation remain…

介观与纳米尺度物理 · 物理学 2024-07-30 Rhonald Burgos Atencia , Daniel P. Arovas , Dimitrie Culcer

A method to temporally tailor the properties of X-ray radiation carrying Orbital Angular Momentum (OAM) is presented. In simulations, an electron beam is prepared with a temporally modulated micro-bunching structure which, when radiating at…

加速器物理 · 物理学 2022-05-04 J. Morgan , B. W. J. McNeil

Light carrying orbital angular momentum (OAM) has potential to impact a wide variety of applications ranging from optical communications to quantum information and optical forces for the excitation and manipulation of atoms, molecules, and…

光学 · 物理学 2014-08-15 Jie Sun , Ami Yaacobi , Michele Moresco , Douglas Coolbaugh , Michael R. Watts

Quantum information protocols utilizing atomic ensembles require preparation of a coherent spin state (CSS) of the ensemble as an important starting point. We investigate the magneto-optical resonance method for characterizing a spin state…

量子物理 · 物理学 2009-11-10 B. Julsgaard , J. Sherson , J. L. Sorensen , E. S. Polzik

The experimental realization of emergent spin-orbit coupling through laser-induced Raman transitions in ultracold atoms paves the way for exploring novel superfluid physics and simulating exotic many-body phenomena. A recent proposal with…

量子气体 · 物理学 2015-06-02 Chunlei Qu , Kuei Sun , Chuanwei Zhang

Spin waves in non-collinear magnets with $C_{nv}$ symmetry are discussed in the context of inelastic neutron scattering in small-angle scattering geometry. In the framework of a minimal model including exchange coupling,…

强关联电子 · 物理学 2023-09-22 Oleg I. Utesov

Within the framework of the recently introduced multi-nanoparticle power-series expansion method for the polarized small-angle neutron scattering (SANS) cross section, we present analytical expressions for the polarized SANS observables…

材料科学 · 物理学 2024-04-25 Michael P. Adams , Evelyn P. Sinaga , Stefan Liscak , Andreas Michels

We describe a novel approach for generating light beams that carry orbital angular momentum (OAM) by means of total internal reflection in an isotropic medium. A continuous space-varying cylindrically symmetric reflector, in the form of…

X-ray beams carrying orbital angular momentum (OAM) are an emerging tool for probing matter. Optical elements, such as spiral phase plates and zone plates, have been widely used to generate OAM light. However, these optics are challenging…

加速器物理 · 物理学 2022-08-22 Jiawei Yan , Gianluca Geloni

Methods of preparation and analysis of structured waves of light, electrons, and atoms have been advancing rapidly. Despite the proven power of neutrons for material characterization and studies of fundamental physics, neutron science has…

In this work, we explore the motion of a twisted particle possessing intrinsic orbital angular momentum (OAM) as it traverses a weak stellar gravitational field, which we approximate using a polytropic model. We disregard the spin…

广义相对论与量子宇宙学 · 物理学 2024-09-04 Dan-Dan Lian , Peng-Ming Zhang

We performed angle resolved photoemission (ARPES) studies on Cu(111) and Au(111) surface states with circularly polarized light. Existence of local orbital angular momentum (OAM) is confirmed as has been predicted to be broadly present in a…