scholarly journals Dynamical chiral symmetry breaking by a magnetic field and multi-quark interactions

2007 ◽  
Vol 650 (4) ◽  
pp. 262-267 ◽  
Author(s):  
A.A. Osipov ◽  
B. Hiller ◽  
A.H. Blin ◽  
J. da Providência
Keyword(s):  
Magnetic Field ◽  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Chiral Symmetry Breaking ◽  
Dynamical Chiral Symmetry Breaking

scholarly journals INFLUENCE OF A UNIFORM MAGNETIC FIELD ON DYNAMICAL CHIRAL SYMMETRY BREAKING IN QED3

2012 ◽  
Vol 27 (09) ◽  
pp. 1250026 ◽  
Author(s):  
JIAN-FENG LI ◽  
HONG-TAO FENG ◽  
YU JIANG ◽  
WEI-MIN SUN ◽  
HONG-SHI ZONG
Keyword(s):  
Magnetic Field ◽  
High Temperature ◽  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Uniform Magnetic Field ◽  
Cuprate Superconductors ◽  
Chiral Symmetry Breaking ◽  
Critical Value ◽  
Dynamical Chiral Symmetry Breaking ◽  
The Magnetic Field

We study dynamical chiral symmetry breaking (DCSB) in an effective QED3 theory of d-wave high temperature cuprate superconductors under a uniform magnetic field. At zero temperature, the external magnetic field induces a mixed state by generating vortices in the condensate of charged holons. The growing magnetic field suppresses the superfluid density and thus reduces the gauge field mass which is opened via the Anderson–Higgs mechanism. By numerically solving the Dyson–Schwinger gap equation, we show that the massless fermions acquires a dynamical gap through DCSB mechanism when the magnetic field strength H is above a critical value H c and the fermion flavors N is below a critical value N c . Further, it is found that both N c and the dynamical fermion gap increase as the magnetic field H grows. It is expected that our result can be tested in phenomena in high temperature cuprate superconductors.

scholarly journals Dynamical chiral symmetry breaking by a magnetic field in QED

1995 ◽  
Vol 52 (8) ◽  
pp. 4747-4751 ◽  
Author(s):  
V. P. Gusynin ◽  
V. A. Miransky ◽  
I. A. Shovkovy
Keyword(s):  
Magnetic Field ◽  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Chiral Symmetry Breaking ◽  
Dynamical Chiral Symmetry Breaking
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