Induced Parity-Breaking Term at Finite Temperature

1997/05/31 by C. D. Fosco, C. Fosco, G. L. Rossini +2 · 3 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-th

paper · pdf · doi:10.1103/physrevlett.79.1980

published as Phys.Rev.Lett. 79 (1997) 1980-1983; Erratum-ibid. 79 (1997) 4296 · to be published in Physical Review Letters. 5 pages, Revtex, no figures

arxiv created 1997/07/16 · openalex publication_date 1997/09/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

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.

Cited by

• Dimensional reduction, magnetic flux strings, and domain walls
• Derivative expansion and large gauge invariance at finite temperature
• Phase of the fermion determinant inQED3using a gauge invariant lattice regularization