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Photon orbital angular momentum and mass in a plasma vortex
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
2010 (English)In: Europhysics letters, ISSN 0295-5075, E-ISSN 1286-4854, Vol. 90, no 4, 45001- p.Article in journal (Refereed) Published
Abstract [en]

We analyse the Anderson-Higgs mechanism of photon mass acquisition in a plasma and study the contribution to the mass from the orbital angular momentum acquired by a beam of photons when it crosses a spatially structured charge distribution. To this end we apply Proca-Maxwell equations in a static plasma with a particular spatial distribution of free charges, notably a plasma vortex, that is able to impose orbital angular momentum (OAM) onto light. In addition to the mass acquisition of the conventional Anderson-Higgs mechanism, we find that the photon acquires an additional mass from the OAM and that this mass reduces the Proca photon mass.

Place, publisher, year, edition, pages
2010. Vol. 90, no 4, 45001- p.
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-147215DOI: 10.1209/0295-5075/90/45001ISI: 000279119200015OAI: oai:DiVA.org:uu-147215DiVA: diva2:400161
Available from: 2011-02-24 Created: 2011-02-24 Last updated: 2017-12-11Bibliographically approved

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Swedish Institute of Space Physics, Uppsala Division
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