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arXiv · hep-ph/9901358

Radiatively Induced Lorentz and CPT Violation in Electrodynamics

Roman Jackiw·Alan Kostelecky
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Abstract

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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Roman Jackiw, Alan Kostelecky. 1999-01-20. Radiatively Induced Lorentz and CPT Violation in Electrodynamics. https://doi.org/10.1103/physrevlett.82.3572

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