An Exact QED_{3+1} Effective Action
High Energy Physics - Theory
2009-10-30 v1
Abstract
We compute the exact QED_{3+1} effective action for fermions in the presence of a family of static but spatially inhomogeneous magnetic field profiles. An asymptotic expansion of this exact effective action yields an all-orders derivative expansion, the first terms of which agree with independent derivative expansion computations. These results generalize analogous earlier results by Cangemi et al in QED_{2+1}.
Cite
@article{arxiv.hep-th/9710062,
title = {An Exact QED_{3+1} Effective Action},
author = {Gerald Dunne and Theodore M. Hall},
journal= {arXiv preprint arXiv:hep-th/9710062},
year = {2009}
}
Comments
7 pages, Latex, no figures