Magnetic Catalysis of Chiral Symmetry Breaking in QED at Finite Temperature

Details Magnetic Catalysis of Chiral Symmetry Breaking in QED at Finite Temperature Magnetic Catalysis of Chiral Symmetry Breaking in QED at Finite Temperature

1997-09-14

arxiv.org/abs/hep-ph/9709339v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, Latex file. Talk given at the "APCTP-ICTP Joint International Conference on Recent Developments in Non-perturbative

Scientific paper

The catalysis of chiral symmetry breaking by a magnetic field in the massless weak-coupling phase of QED is studied. 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. The temperature of the symmetry restoration is calculated analytically as $T_c\approx m_{dyn}$, where $m_{dyn}$ is the dynamical mass of a fermion at zero temperature.

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