One-Loop Effective Action for the Extended Spinor Electrodynamics with Violation of Lorentz and CPT Symmetry

Details One-Loop Effective Action for the Extended Spinor Electrodynamics with Violation of Lorentz and CPT Symmetry One-Loop Effective Action for the Extended Spinor Electrodynamics with Violation of Lorentz and CPT Symmetry

2001-03-26

arxiv.org/abs/hep-th/0103215v2

Phys.Lett. B515 (2001) 414-420

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, LaTeX, v2: conceptual changes

Scientific paper

10.1016/S0370-2693(01)00862-0

If violation of Lorentz and CPT symmetry is introduced into the fermion sector of conventional quantum electrodynamics, then the Chern-Simons term is radiatively induced with finite nonzero coefficient, as well as the Maxwell term is with logarithmically divergent one. The heat kernel expansion and the proper time methods are used to determine the effective action in the one-loop approximation unambiguously.

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