Magnetic catalysis in a P-even, chiral-invariant three-dimensional model with four-fermion interaction

V. Ch. Zhukovsky; K. G. Klimenko; V. V. Khudyakov

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Magnetic catalysis in a P-even, chiral-invariant three-dimensional model with four-fermion interaction

V. Ch. Zhukovsky·K. G. Klimenko·V. V. Khudyakov

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Abstract

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.

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V. Ch. Zhukovsky, K. G. Klimenko, V. V. Khudyakov. 2000-10-12. Magnetic catalysis in a P-even, chiral-invariant three-dimensional model with four-fermion interaction. https://arxiv.org/abs/hep-ph/0010123

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