https://doi.org/10.1140/epjc/s10052-014-3216-5
Regular Article - Theoretical Physics
Different critical points of chiral and deconfinement phase transitions in (2 + 1)-dimensional fermion–gauge interacting model
1
Department of Physics, Southeast University, Nanjing, 211189, China
2
Institute of Theoretical Physics, CAS, Beijing, 100190, China
3
Department of Physics, Nanjing University, Nanjing, 210093, China
4
State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, CAS, Beijing, 100190, China
* e-mail: fenght@seu.edu.cn
Received:
13
February
2014
Accepted:
4
December
2014
Published online:
17
December
2014
Based on the truncated Dyson–Schwinger equations for fermion and massive boson propagators in QED$$_3$$, the fermion chiral condensate and the mass singularities of the fermion propagator via the Schwinger function are investigated. It is shown that the critical point of the chiral phase transition is apparently different from that of the deconfinement phase transition and in Nambu phase the fermion is confined only for small gauge-boson mass.
© SIF and Springer-Verlag Berlin Heidelberg, 2014
