arXiv:1308.3913·v1·Nuclear Theory
Discussion for the Solutions of Dyson-Schwinger Equations at m>0 in QED3
Hui-xia Zhu🇨🇳 · Hong-tao Feng🇨🇳 · Wei-min Sun🇨🇳 · Hong-shi Zong🇨🇳
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.
Comments: 5 pages, 3 figures