2000/10/12 by V. Ch. Zhukovsky, K. G. Klimenko, V. V. Khudyakov
Physics and Astronomy · #hep-ph
published as Theor.Math.Phys. 124 (2000) 1132; Teor.Mat.Fiz. 124 (2000) 323-338 · 13 pages and 3 figures
arxiv created 2000/10/12 · arxiv updated 2009/11/30
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). Moreover, vacuum of the model at H>0 can be either P-symmetric or chiral invariant, depending on the values of the coupling constants.