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.
Lagrangian reverse engineering for regular black holes / Bokulić, Ana; Franzin, E; Jurić, Tajron; Smolić, Ivica. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 854:(2024), pp. 1-5. [10.1016/j.physletb.2024.138750]
Lagrangian reverse engineering for regular black holes
Franzin E;
2024
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.File | Dimensione | Formato | |
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