Magnetic effects and chiral-symmetry breaking in strongly coupled quantum electrodynamics

1989 ◽  
Vol 39 (8) ◽  
pp. 2415-2418 ◽  
Author(s):  
Hoi Lai Yu ◽  
Ta Shin Lee ◽  
Wai Bong Yeung
Keyword(s):  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Quantum Electrodynamics ◽  
Chiral Symmetry Breaking ◽  
Strongly Coupled ◽  
Magnetic Effects

Determine the critical fermion flavor in three-dimensional QED using nonlocal gauge

2014 ◽  
Vol 29 (33) ◽  
pp. 1450159
Author(s):  
Hua Jiang ◽  
Yong-Long Wang ◽  
Wei-Tao Lu ◽  
Chuan-Cong Wang
Keyword(s):  
Symmetry Breaking ◽  
Critical Point ◽  
Chiral Symmetry ◽  
Gauge Boson ◽  
Quantum Electrodynamics ◽  
Chiral Symmetry Breaking ◽  
Three Dimensional ◽  
Gauge Parameter ◽  
Dynamical Chiral Symmetry Breaking

We determine the critical fermion flavor for dynamical chiral symmetry breaking in three-dimensional quantum electrodynamics using nonlocal gauge (gauge parameter depends on the momentum or coordinate). The coupled Dyson–Schwinger equations of the fermion and gauge boson propagators are considered in the vicinity of the critical point. Illustrated by using the transverse vertex proposed by Bashir et al., we show that: for a variety of the transverse vertex, the critical flavor is still 128/3π2, the same as using the bare vertex.

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