Two-loop QED with External Magnetic Field
High Energy Physics - Theory
2008-02-03 v3
Abstract
In two - loop effective Lagrangian, the low - temperature expansion of the with a constant magnetic field and a finite chemical potential is performed. We then calculate the total fermion density, some components of polarization operator and de Hass -van Alphen oscillations. We find that there is a significant contribution from two-loop expansion to magnetization and fermion density for higher values of chemical potentials.
Cite
@article{arxiv.hep-th/9509046,
title = {Two-loop QED with External Magnetic Field},
author = {Pradip K Sahu},
journal= {arXiv preprint arXiv:hep-th/9509046},
year = {2008}
}
Comments
12 pages (LaTex) and 5 postscript figures added. Replaced to remove blocks of text accidentally copied verbatim from papers by V. Zeitlin (hep-ph/9412204 and hep-ph/9507404) and some typos are corrected