Higher-order one-loop contributions in Lorentz-breaking QED
A. P. Baeta Scarpelli, L. C. T. Brito, J. C. C. Felipe, J. R., Nascimento, A. Yu. Petrov
TL;DR
This paper computes higher-order one-loop quantum corrections in Lorentz-violating extended QED, revealing nontrivial second-order gauge-invariant contributions that go beyond first-order effects.
Contribution
It introduces the calculation of second-order quantum contributions in Lorentz-violating parameters within QED, highlighting new gauge-invariant effects.
Findings
Identification of nontrivial second-order gauge-invariant terms
First detailed calculation of higher-order Lorentz-violating quantum effects
Insights into the structure of Lorentz-breaking quantum corrections
Abstract
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.
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