Vp. Gusynin et al., Physical gauge in the problem of dynamical chiral symmetry breaking in QEDin a magnetic field, FOUND PHYS, 30(3), 2000, pp. 349-357
We describe how the choice of an appropriate ("physical") gauge leads to th
e solution of a nonperturbative problem in quantum electrodynamics: dynamic
al chiral symmetry breaking in QED in a constant magnetic field.