3 v 1 1 2 O ct 2 00 0 Magnetic catalysis in a P-even , chiral-invariant 3-dimensional model with four-fermion interaction


The influence of an external constant and homogeneous magnetic field H on the phase structure of the P-symmetric, chiral invariant 3-dimensional field theory model with two four-fermion interaction structures is considered. An arbitrary small (nonzero) magnetic field is shown to induce spontaneous violation of the initial symmetry (magnetic catalysis… (More)

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