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Applications of the Light Cone Condition for various perturbed Vacua
Walter Dittrich, Holger Gies
We examine the propagation of light in the presence of various modifications of the QED vacuum in the limit of low frequency. A polarization summed and direction averaged-light con…
Vacuum Birefringence in Strong Magnetic Fields
Walter Dittrich, Holger Gies
Table of Contents 1. One-loop effective Lagrangian in spinor QED. 2. Dispersion effects for low-frequency photons. 3. Vacuum birefringence in magnetic fields. 4. Light cone conditi…
Light propagation in non-trivial QED vacua
Walter Dittrich, Holger Gies
Within the framework of effective action QED, we derive the light cone condition for homogeneous non-trivial QED vacua in the geometric optics approximation. Our result generalizes…
Light Propagation in Non-Trivial QED Vacua
Holger Gies, Walter Dittrich
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 gener…