Volume 87, Number 3, August 2009
|Number of page(s)||5|
|Section||The Physics of Elementary Particles and Fields|
|Published online||25 August 2009|
An effective action approach to photon propagation on a magnetized background
Department of Physics, Umeå University - SE-901 87 Umeå, Sweden, EU
Corresponding author: firstname.lastname@example.org
Accepted: 22 July 2009
A new explicit analytical form of the dispersion relation for photon propagation in the presence of a strong background magnetic field is derived within the effective action framework. The dispersion relation is expressed in terms of well-known special functions, and the treatment is exact within the linearization procedure, the one-loop approximation, and the soft photon approximation. The results are incorporated in a kinetic spin plasma description for the purpose of studying quantum electrodynamical effects of strongly magnetized plasmas. The results are applied to astrophysical examples.
PACS: 12.20.-m – Quantum electrodynamics / 11.10.Ef – Lagrangian and Hamiltonian approach / 52.40.Db – Electromagnetic (nonlaser) radiation interactions with plasma
© EPLA, 2009
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