Radiatively Induced Lorentz and CPT Violation in Electrodynamics

Details Radiatively Induced Lorentz and CPT Violation in Electrodynamics Radiatively Induced Lorentz and CPT Violation in Electrodynamics

1999-01-20

arxiv.org/abs/hep-ph/9901358v1

Phys.Rev.Lett.82:3572-3575,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages

Scientific paper

10.1103/PhysRevLett.82.3572

In a nonperturbative formulation, radiative corrections arising from Lorentz
and CPT violation in the fermion sector induce a definite and nonzero
Chern-Simons addition to the electromagnetic action. If instead a perturbative
formulation is used, an infinite class of theories characterized by the value
of the Chern-Simons coefficient emerges at the quantum level.

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