Non-linear electrodynamics emerging from a Lorentz-symmetry violation scenario

M. J. Neves; G. Peruzzo

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arXiv · 2610.02415

Non-linear electrodynamics emerging from a Lorentz-symmetry violation scenario

M. J. Neves·G. Peruzzo

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Abstract

The effective action at one-loop for the quantum electrodynamics (QED) in the presence of background vectors and tensors that break the Lorentz symmetry is calculated in this work. We highlight that just the Lorentz symmetry violation through the Dirac matrices in the fermionic sector is considered since investigations in others sectors of the extended QED has been explored in recent papers. Using the proper time method, we show that some background vectors and tensors do not contribute to the effective action at one-loop and in the linear approximation. Thereby, only two background tensors contribute to the effective action at one-loop for small components of these tensors, and that a new combination of cubic and quartic non-linear electrodynamics emerge in the weak field regime.

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M. J. Neves, G. Peruzzo. 2026-10-07. Non-linear electrodynamics emerging from a Lorentz-symmetry violation scenario. https://arxiv.org/abs/2610.02415

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