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Storming Majorana's Tower with OAM states of light in a plasma
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
2011 (English)In: Europhysics letters, ISSN 0295-5075, E-ISSN 1286-4854, Vol. 96, no 6, 64005- p.Article in journal (Refereed) Published
Abstract [en]

We extend the relationship between mass and spin angular momentum, described by the bosonic spectrum of positive definite mass particles of the Majorana solution to the Dirac equation, to photons that acquire an effective Proca mass through the Anderson-Higgs mechanism (Anderson P. W., Phys. Rev., 130 (1963) 439) when they propagate in a plasma. In an earlier paper (TAMBURINI F. et al., EPL, 90 (2010) 45001) we showed that if the plasma is structured, it can impart orbital angular momentum (OAM) to the photons that reduces the total Proca photon mass. Here we show, through a generalisation of Majorana's solution, that photons with OAM in a plasma cannot assume negative squared mass states. This means that there exist interesting analogies with Quantum Gravity or General Relativity models involving a modified action of the Lorentz group.

Place, publisher, year, edition, pages
2011. Vol. 96, no 6, 64005- p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-168757DOI: 10.1209/0295-5075/96/64005ISI: 000298561600023OAI: oai:DiVA.org:uu-168757DiVA: diva2:503416
Available from: 2012-02-15 Created: 2012-02-15 Last updated: 2017-12-07Bibliographically approved

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Thidé, Bo

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