Four-dimensional aether-like Lorentz-breaking QED revisited and problem of ambiguities
arXiv:1304.2256 · doi:10.1140/epjc/s10052-013-2526-3
Abstract
In this paper, we consider the perturbative generation of the CPT-even aether-like Lorentz-breaking term in the extended Lorentz-breaking QED within different approaches and discuss its ambiguities.
15 pages, version accepted to EPJ C