Discussion for the Solutions of Dyson-Schwinger Equations at m ≠ 0 in QED₃

Huixia Zhu, Hongtao Feng, Weimin Sun, Hongshi Zong

Department of Physics, Nanjing University, Nanjing, China.
Department of Physics, Southeast University, Nanjing, China.

DOI: 10.4236/jmp.2013.44A014                

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 m_c, one solution disappears, and the dependence of m_c on the number of fermion flavors is also given.

Keywords

QED₃; Fermion Propagator; Solutions of DSEs

Conflicts of Interest

The authors declare no conflicts of interest.

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