Radiatively Induced Lorentz andViolation in Electrodynamics
- 3 May 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 82 (18), 3572-3575
- https://doi.org/10.1103/physrevlett.82.3572
Abstract
In a nonperturbative formulation, radiative corrections arising from Lorentz and 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.
Keywords
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