| Issue |
EPL
Volume 87, Number 3, August 2009
|
|
|---|---|---|
| Article Number | 31001 | |
| Number of page(s) | 5 | |
| Section | The Physics of Elementary Particles and Fields | |
| DOI | https://doi.org/10.1209/0295-5075/87/31001 | |
| 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: joakim.lundin@physics.umu.se
Received:
17
June
2009
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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