Parity-violating electromagnetic interactions in QED_3 at finite temperature

Details Parity-violating electromagnetic interactions in QED_3 at finite temperature Parity-violating electromagnetic interactions in QED_3 at finite temperature

2000-05-16

arxiv.org/abs/hep-ph/0005150v1

Phys.Rev. D62 (2000) 085012

Physics

High Energy Physics

High Energy Physics - Phenomenology

25 pages, 3 figures

Scientific paper

10.1103/PhysRevD.62.085012

We study the parity-breaking terms generated by the box diagram in 2+1 dimensional thermal QED. These lead, in the long wave limit, to a gauge invariant extensive action which behaves as 1/T at high temperature. In contrast, the effective action in the static limit involves leading non-extensive terms proportional to 1/T^3 at high temperature, which violate large gauge invariance. We derive a non-linear large gauge Ward identity, which relates the leading static terms of different order in perturbation theory and whose solution coincides with the all order effective action proposed earlier.

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