# Measuring an electron beam's orbital angular momentum spectrum

@article{Grillo2016MeasuringAE, title={Measuring an electron beam's orbital angular momentum spectrum}, author={I. Grillo and Amir Hossein Tavabi and Federico Venturi and Hugo Larocque and Roberto Balboni and Gian Carlo Gazzadi and Stefano Frabboni and Penghan Lu and Erfan Mafakheri and Fr'ed'eric Bouchard and Rafal E. Dunin-Borkowski and Robert W. Boyd and Martin P. J. Lavery and Miles J. Padgett and Ebrahim Karimi}, journal={arXiv: Quantum Physics}, year={2016} }

Quantum complementarity states that particles, e.g. electrons, can exhibit wave-like properties such as diffraction and interference upon propagation. \textit{Electron waves} defined by a helical wavefront are referred to as twisted electrons~\cite{uchida:10,verbeeck:10,mcmorran:11}. These electrons are also characterised by a quantized and unbounded magnetic dipole moment parallel to their propagation direction, as they possess a net charge of $-|e|$~\cite{bliokh:07}. When interacting with… Expand

#### 4 Citations

Origins and demonstrations of electrons with orbital angular momentum

- Physics, Medicine
- Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
- 2017

How electron wave functions can be imprinted with quantized phase vortices in analogous ways to twisted light, demonstrating that charged particles with non-zero rest mass can possess orbital angular momentum in free space is discussed. Expand

Theory and applications of free-electron vortex states

- Physics
- 2017

Abstract Both classical and quantum waves can form vortices : entities with helical phase fronts and circulating current densities. These features determine the intrinsic orbital angular momentum… Expand

Realization of electron vortices with large orbital angular momentum using miniature holograms fabricated by electron beam lithography

- Physics
- 2016

Free electron beams that carry high values of orbital angular momentum (OAM) possess large magnetic moments along the propagation direction. This makes them an ideal probe for measuring the… Expand

Introduction ( a ) A quantum vortex model of matter

- 2017

Electronic supplementary material is available online at https://dx.doi.org/10.6084/m9. figshare.c.3647705. Origins and demonstrations of electrons with orbital angular momentum Benjamin J.… Expand

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