We study the dynamical chiral symmetry breaking (DCSB) of three-dimensional quantum electrodynamics (QED₃) at finite chemical potential and temperature in the framework of Dyson–Schwinger approach. Based on the rainbow approximation and assumption that the wave-function renormalization factor equals to one, the dynamically generated mass function is derived and then the corresponding phase diagram in the (T, μ) plane is obtained.

Keywords:

PACS: 11.10.Kk, 11.15.Tk, 11.30.Qc

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