Factorization of finite temperature graphs in thermal QED
High Energy Physics - Theory
2008-11-26 v1 High Energy Physics - Phenomenology
Abstract
We extend our previous analysis of gauge and Dirac fields in the presence of a chemical potential. We consider an alternate thermal operator which relates in a simple way the Feynman graphs in QED at finite temperature and charge density to those at zero temperature but non-zero chemical potential. Several interesting features of such a factorization are discussed in the context of the thermal photon and fermion self-energies.
Keywords
Cite
@article{arxiv.hep-th/0601227,
title = {Factorization of finite temperature graphs in thermal QED},
author = {Fernando T. Brandt and Ashok Das and Olivier Espinosa and Josif Frenkel and Silvana Perez},
journal= {arXiv preprint arXiv:hep-th/0601227},
year = {2008}
}
Comments
4 pages