4 papers
Real-Time thermal Ward-Takahashi Identity for vectorial current in QED and QCD
Zhou Bang-Rong
It is shown that, by means of canonical operator approach, the Ward-Takahashi identity (WTI) at finite temperature and finite chemical potential for complete vectorial vert…
Symmetry restoring phase transitions at high density in a 4D Nambu-Jona-Lasinio model with a single order parameter
Zhou Bang-Rong
High density phase transitions in a 4 dimensional Nambu-Jona-Lasinio model containing a single symmetry breaking order parameter coming from the fermion-antifermion condensates are…
Particle density in zero temperature symmetry restoring phase transitions in four-fermion interaction models
Zhou Bang-Rong
By means of critical behaviors of the dynamical fermion mass in four-fermion interaction models, we have shown by explicit calculations that when T=0 the particle density will have…
Second and first order phase transition in three dimension Gross-Neveu model
Zhou Bang-Rong
Symmetry restoring phase transitions in three dimension Gross-Neveu model are shown to be second order at finite temperature and first order at T=0 and finite chemical potentia…