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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Abstract
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 |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| 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: | 1367-2630 |
| 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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