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Magnetic Catalysis of Chiral Symmetry Breaking in Gauge Theories

V. P. Gusynin
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Abstract

Non-perturbative effect of the formation of a chiral symmetry breaking condensate <\barψψ> 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 αin a strong magnetic field. Possible applications of this effect are discussed.

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V. P. Gusynin. 2000-01-11. Magnetic Catalysis of Chiral Symmetry Breaking in Gauge Theories. https://arxiv.org/abs/hep-th/0001070

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