Magnetic catalysis in QED_3 at finite temperature: beyond the constant mass approximation
High Energy Physics - Theory
2009-10-31 v4 Superconductivity
High Energy Physics - Phenomenology
Abstract
We solve the Schwinger-Dyson equations for (2+1)-dimensional QED in the presence of a strong external magnetic field. The calculation is done at finite temperature and the fermionic self energy is not supposed to be momentum-independent, which is the usual simplification in such calculations. The phase diagram in the temperature-magnetic field plane is determined. For intermediate magnetic fields the critical temperature turns out to have a square root dependence on the magnetic field, but for very strong magnetic fields it approaches a B-independent limiting value.
Keywords
Cite
@article{arxiv.hep-th/0010211,
title = {Magnetic catalysis in QED_3 at finite temperature: beyond the constant mass approximation},
author = {J. Alexandre and K. Farakos and G. Koutsoumbas},
journal= {arXiv preprint arXiv:hep-th/0010211},
year = {2009}
}
Comments
21 pages, 10 figures, published version