Induced Parity Breaking Term at Finite Temperature
C. Fosco (1), G. L. Rossini (2,3), F. A. Schaposnik (3) ((1) Centro, Atomico Bariloche, (2) Massachusetts Institute of Technology, (3) Universidad, Nacional de La Plata)
TL;DR
This paper calculates the exact parity-breaking effective action for massive fermions in 2+1 dimensional QED at finite temperature, confirming gauge invariance under large gauge transformations.
Contribution
It provides the first exact computation of the induced parity-breaking term at finite temperature in 2+1 QED, ensuring gauge invariance is maintained.
Findings
Exact induced parity-breaking effective action computed.
Gauge invariance preserved under large gauge transformations.
Results applicable to finite temperature quantum field theories.
Abstract
We compute the exact induced parity-breaking part of the effective action for 2+1 massive fermions in 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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