Generation of higher derivatives operators and electromagnetic wave propagation in a Lorentz-violation scenario

Understand

We study the perturbative generation of higher-derivative operators as corrections to the photon effective action, which are originated from a Lorentz violation background.

• Such corrections are obtained, at one-loop order, through the proper-time method, using the zeta function regularization.
• We focus over the lowest order corrections and investigate their influence in the propagation of electromagnetic waves through the vacuum, in the presence of a strong, constant magnetic field.
• This is a setting of experimental relevance, since it bases active efforts to measure non linear electromagnetic effects.