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arXiv · hep-lat/9802037

Dynamical Flavour Symmetry Breaking by a Magnetic Field in Lattice QED_3

K. Farakos·G. Koutsoumbas·N. E. Mavromatos
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Abstract

We perform a lattice study, in the quenched approximation, of dynamical mass generation in a system of relativistic (Dirac) fermions, coupled to an Abelian gauge field in (2+1)-dimensions, in the presence of an external (constant) magnetic field, perpendicular to the spatial planes. It is shown that a strong magnetic field catalyzes chiral symmetry breaking, in agreement with results in the continuum. The rôle of the higher-Landau poles in inducing a critical temperature above which the phenomenon disappears is pointed out. We also discuss the implications of this model on the opening of a gap in doped antiferromagnetic superconductors.

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K. Farakos, G. Koutsoumbas, N. E. Mavromatos. 1998-03-04. Dynamical Flavour Symmetry Breaking by a Magnetic Field in Lattice QED_3. https://doi.org/10.1016/s0370-2693(98)00569-3

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