Chern-Simons like term generation in an extended model of QED under external conditions
High Energy Physics - Theory
2009-11-10 v2
Abstract
The possibility of a Chern-Simons like term generation in an extended model of QED, in which a Lorentz and CPT non-covariant interaction term for fermions is present, has been investigated at finite temperature and in the presence of a background color magnetic field. To this end, the photon polarization operator in an external constant axial-vector field has been considered. One-loop contributions to its antisymmetric component due to fermions in the linear order of the axial-vector field have been obtained. Moreover, the first nontrivial correction to the induced CS term due to the presence of a weak constant homogeneous color magnetic field has been derived.
Keywords
Cite
@article{arxiv.hep-th/0401241,
title = {Chern-Simons like term generation in an extended model of QED under external conditions},
author = {D. Ebert and V. Ch. Zhukovsky and A. S. Razumovsky},
journal= {arXiv preprint arXiv:hep-th/0401241},
year = {2009}
}
Comments
RevTex, 10 pages with 3 figures