Photon Orbital Angular Momentum and Mass in a Plasma Vortex

Details Photon Orbital Angular Momentum and Mass in a Plasma Vortex Photon Orbital Angular Momentum and Mass in a Plasma Vortex

2010-01-22

arxiv.org/abs/1001.4042v2

Physics

Plasma Physics

Four pages, no figures. Error corrections, improved notation, refined derivations

Scientific paper

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.

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