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Properties of a consistent Lorentz-violating Abelian gauge theory
Phys. Rev. D 83, 125008 – Published 1 June, 2011
DOI: https://doi.org/10.1103/PhysRevD.83.125008
Abstract
A Lorentz-violating modification of massless QED is proposed, with higher-order space derivatives for the photon field. The fermion dynamical mass generation is studied with the Schwinger-Dyson approach. Perturbative properties of the model are calculated at one-loop and discussed at higher-order loops, showing the consistency of the model. We explain that there is no contradiction with the definition of the speed of light , although fermions see an effective light cone, with a maximum speed smaller than .
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