TITLE:
Discussion for the Solutions of Dyson-Schwinger Equations at m ≠ 0 in QED3
AUTHORS:
Huixia Zhu, Hongtao Feng, Weimin Sun, Hongshi Zong
KEYWORDS:
QED3; Fermion Propagator; Solutions of DSEs
JOURNAL NAME:
Journal of Modern Physics,
Vol.4 No.4A,
April
30,
2013
ABSTRACT: In the case of nonzero fermion mass, within a range of Ansatze for the full fermion-boson vertex, we show that Dyson-Schwinger equation for the fermion propagator in QED3 has two qualitatively distinct dynamical chiral symmetry breaking solutions. As the fermion mass increases and reaches to a critical value mc, one solution disappears, and the dependence of mc on the number of fermion flavors is also given.