Magnetic Catalysis of Chiral Symmetry Breaking in Gauge Theories

Details Magnetic Catalysis of Chiral Symmetry Breaking in Gauge Theories Magnetic Catalysis of Chiral Symmetry Breaking in Gauge Theories

2000-01-11

arxiv.org/abs/hep-th/0001070v1

Ukr.J.Phys. 45 (2000) 603-609

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, Latex file, no figures. Talk given at the Bogolyubov Conference on Problems of Theoretical and Mathematical Physics,

Scientific paper

Non-perturbative effect of the formation of a chiral symmetry breaking condensate <\bar\psi\psi> and of a dynamically generated fermion mass in QED in the presence of an external magnetic field is considered. The dynamical mass of a fermion (energy gap in the fermion spectrum) is shown to depend essentially nonanalytically on the renormalized coupling constant \alpha in a strong magnetic field. Possible applications of this effect are discussed.

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