Zambrini, R. and Barnett, S. M. (2006) Quasi-intrinsic angular momentum and the measurement of its spectrum. Physical Review Letters, 96(11), p. 113901. (doi: 10.1103/PhysRevLett.96.113901)
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Publisher's URL: http://dx.doi.org/10.1103/PhysRevLett.96.113901
Abstract
We introduce the concept of quasi-intrinsic angular momentum to denote fields for which the mean value of the angular momentum is unaltered by a lateral shift of the rotation axis but the spectrum changes. This property is exemplified by the orbital angular momentum of a beam of light about its propagation direction. We propose an interferometric experiment to measure efficiently the exact angular momentum spectrum and variance for light beams with any arbitrary spatial distribution.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Barnett, Professor Stephen |
Authors: | Zambrini, R., and Barnett, S. M. |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Physical Review Letters |
Publisher: | American Physical Society |
ISSN: | 0031-9007 |
ISSN (Online): | 1079-7114 |
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