Light Propagation in Non-Trivial QED Vacua
High Energy Physics - Phenomenology
2009-10-31 v1 High Energy Physics - Theory
Abstract
Within the geometric optics approximation, we derive the light cone condition for a class of homogeneous non-trivial QED vacua using the effective action approach. Our result generalizes the ``unified formula'' suggested by Latorre, Pascual and Tarrach which turns out to be a low-energy limit. We calculate the velocity shifts induced by electromagnetic fields and finite temperature and especially analyze the high-energy limit consistent with the loop approximation.
Cite
@article{arxiv.hep-ph/9804303,
title = {Light Propagation in Non-Trivial QED Vacua},
author = {Holger Gies and Walter Dittrich},
journal= {arXiv preprint arXiv:hep-ph/9804303},
year = {2009}
}
Comments
6 pages, REVTeX