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arXiv · hep-th/0401241

Chern-Simons like term generation in an extended model of QED under external conditions

D. Ebert·V. Ch. Zhukovsky·A. S. Razumovsky
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Abstract

The possibility of a Chern-Simons like term generation in an extended model of QED, in which a Lorentz and CPT non-covariant interaction term for fermions is present, has been investigated at finite temperature and in the presence of a background color magnetic field. To this end, the photon polarization operator in an external constant axial-vector field has been considered. One-loop contributions to its antisymmetric component due to fermions in the linear order of the axial-vector field have been obtained. Moreover, the first nontrivial correction to the induced CS term due to the presence of a weak constant homogeneous color magnetic field has been derived.

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D. Ebert, V. Ch. Zhukovsky, A. S. Razumovsky. 2004-02-09. Chern-Simons like term generation in an extended model of QED under external conditions. https://doi.org/10.1103/physrevd.70.025003

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