Do waves carrying orbital angular momentum possess azimuthal linear momentum?

Speirits, Fiona C. and Barnett, Stephen M. (2013) Do waves carrying orbital angular momentum possess azimuthal linear momentum? Physical Review Letters, 111 (10). 103602. ISSN 1079-7114 (https://doi.org/10.1103/PhysRevLett.111.103602)

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Abstract

All beams are a superposition of plane waves, which carry linear momentum in the direction of propagation with no net azimuthal component. However, plane waves incident on a hologram can produce a vortex beam carrying orbital angular momentum that seems to require an azimuthal linear momentum, which presents a paradox. We resolve this by showing that the azimuthal momentum is not a true linear momentum but the azimuthal momentum density is a true component of the linear momentum density.

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• Item metadata

  Item type:	Article
  ID code:	49017
  Dates:	Date Event 4 September 2013 Published
  Subjects:	Science > Physics
  Department:	University of Strathclyde > University of Strathclyde Faculty of Science > Physics
  Depositing user:	Pure Administrator
  Date deposited:	08 Aug 2014 10:15
  Last modified:	08 Apr 2024 21:37
  Related URLs:	Scopus publication Journal or Publication
  URI:	https://strathprints.strath.ac.uk/id/eprint/49017