Parallel axis theorem for free-space electron wavefunctions

Greenshields, C. R., Franke-Arnold, S. and Stamps, R. L. (2015) Parallel axis theorem for free-space electron wavefunctions. New Journal of Physics, 17, 093015. (doi: 10.1088/1367-2630/17/9/093015)

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We consider the orbital angular momentum of a free electron vortex moving in a uniform magnetic field. We identify three contributions to this angular momentum: the canonical orbital angular momentum associated with the vortex, the angular momentum of the cyclotron orbit of the wavefunction, and a diamagnetic angular momentum. The cyclotron and diamagnetic angular momenta are found to be separable according to the parallel axis theorem. This means that rotations can occur with respect to two or more axes simultaneously, which can be observed with superpositions of vortex states.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Stamps, Professor Robert and Franke-Arnold, Professor Sonja
Authors: Greenshields, C. R., Franke-Arnold, S., and Stamps, R. L.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:New Journal of Physics
Publisher:Institute of Physics Publishing Ltd.
ISSN (Online):1367-2630
Copyright Holders:Copyright © 2015 The Authors
First Published:First published in New Journal of Physics 17:093015
Publisher Policy:Reproduced under a Creative Commons License
Related URLs:
Data DOI:10.5525/gla.researchdata.199

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
683531Consortium for advanced materials based on spin chiralityRobert StampsEngineering & Physical Sciences Research Council (EPSRC)EP/M024423/1S&E P&A - PHYSICS & ASTRONOMY