We calculate higher-order quantum contributions in different Lorentz-violating parameters to the gauge sector of the extended QED. As a result of this one-loop calculation, some terms which do not produce first-order corrections, contribute with nontrivial gauge-invariant second-order quantum inductions.
@article{arxiv.1805.06256,
title = {Higher-order one-loop contributions in Lorentz-breaking QED},
author = {A. P. Baeta Scarpelli and L. C. T. Brito and J. C. C. Felipe and J. R. Nascimento and A. Yu. Petrov},
journal= {arXiv preprint arXiv:1805.06256},
year = {2018}
}