QED Effective Actions in Space-Dependent Gauge and Electromagnetic Duality
High Energy Physics - Theory
2011-07-22 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Nuclear Theory
Abstract
We develop the in-out formalism for one-loop effective actions in electromagnetic fields in the space-dependent gauge. We further advance a method using the inverse scattering matrix to calculate the effective actions in pure magnetic fields, find the effective actions in a constant magnetic field and a localized Sauter-type magnetic field and apply the uniform semiclassical approximation to the effective action in a general magnetic field. In the in-out formalism we show that the one-loop effective actions in constant fields and Sauter-type fields exhibit the electromagnetic duality.
Cite
@article{arxiv.1105.4382,
title = {QED Effective Actions in Space-Dependent Gauge and Electromagnetic Duality},
author = {Sang Pyo Kim},
journal= {arXiv preprint arXiv:1105.4382},
year = {2011}
}
Comments
RevTex 19 pages; drastically revised by reformulating the second quantized field theory for barrier tunneling and adding references