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arXiv · hep-th/9802119

Induced Magnetic moments in three-dimensional gauge theories with external magnetic fields

N. E. Mavromatos·A. Momen
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Abstract

We study the appearance of induced parity-violating magnetic moment, in the presence of external magnetic fields, for even-number of fermion species coupled to dynamical fields in three dimensions. Specifically, we use a SU(2)xU(1) gauge model for dynamical gauge symmetry breaking, which is also proposed recently as a field theoretical model for high-temperature superconductors. By decomposing the fermionic degrees of freedom in terms of Landau levels, we show that, in the effective theory with the lowest Landau levels, a parity-violating magnetic moment interaction is induced by the higher Landau levels when the fermions are massive. The possible relevance of this result for a recently observed phenomenon in high-temperature superconductors is also discussed.

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N. E. Mavromatos, A. Momen. 1998-02-23. Induced Magnetic moments in three-dimensional gauge theories with external magnetic fields. https://doi.org/10.1142/s0217732398001844

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