Lagrangian reverse engineering for regular black holes
General Relativity and Quantum Cosmology
2024-05-31 v2 High Energy Physics - Theory
Abstract
Nonlinear extensions of classical Maxwell's electromagnetism are among the prominent candidates for theories admitting regular black hole solutions. A quest for such examples has been fruitful, but mostly unsystematic and littered by the introduction of physically unrealistic Lagrangians. We provide a procedure which admits the reconstruction of a nonlinear electromagnetic Lagrangian, consistent with the Euler--Heisenberg Lagrangian in the weak-field limit, from a given metric representing a regular, magnetically charged black hole.
Cite
@article{arxiv.2311.17151,
title = {Lagrangian reverse engineering for regular black holes},
author = {Ana Bokulić and Edgardo Franzin and Tajron Jurić and Ivica Smolić},
journal= {arXiv preprint arXiv:2311.17151},
year = {2024}
}
Comments
8 pages; ver.2: one sentence added, version accepted for publication in Physics Letters B