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arXiv · hep-ph/9804303

Light Propagation in Non-Trivial QED Vacua

Holger Gies·Walter Dittrich
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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.

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Holger Gies, Walter Dittrich. 1998-04-16. Light Propagation in Non-Trivial QED Vacua. https://doi.org/10.1016/s0370-2693(98)00572-3

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