Electrodynamics at non-zero temperature, chemical potential, and Bose condensate

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Electrodynamics of charged scalar bosons and spin 1/2 fermions is studied at non-zero temperature, chemical potentials, and possible Bose condensate of the charged scalars. Debye screening length, plasma frequency, and the photon dispersion relation are calculated. It is found that in presence of the condensate the time-time component of the photon polarization operator in the first order in electric charge squared acquires infrared singular parts proportional to inverse powers of the spatial photon momentum k.
Two references and explanatory comments are added according to the referee's suggestions. The paper is accepted for publication in JCAP

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High Energy Physics - Theory, Cosmology and Nongalactic Astrophysics, High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/224521

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0811.4406
 http://arxiv.org/abs/0811.4406
 JCAP 0902:027,2009
 doi:10.1088/1475-7516/2009/02/027

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arXiv