Induced Parity Breaking Term at Finite Temperature
C. Fosco, G. L. Rossini, F. A. Schaposnik
Abstract
We compute the exact induced parity-breaking part of the effective action for 2+1 massive fermions in QED3 at finite temperature by calculating the fermion determinant in a particular background. The result confirms that gauge invariance of the effective action is respected even when large gauge transformations are considered.
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