Constraints on singularity resolution by nonlinear electrodynamics

Ana, Bokulić; Tajron, Jurić; Ivica, Smolić (2022) Constraints on singularity resolution by nonlinear electrodynamics. Physical Review D, 106 (6). ISSN 2470-0029

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Abstract

One of the long-standing problems is a quest for regular black hole solutions, in which a resolution of the spacetime singularity has been achieved by some physically reasonable, classical field, before one resorts to the quantum gravity. The prospect of using nonlinear electromagnetic fields for this goal has been limited by the Bronnikov’s no-go theorems, focused on Lagrangians depending on the electromagnetic invariant FabFab only. We extend Bronnikov’s results by taking into account Lagrangians that depend on both electromagnetic invariants, FabFab and Fab⋆Fab, and prove that the tension between the Lagrangian’s Maxwellian weak field limit and boundedness of the curvature invariants persists in more general class of theories.

Item Type:	Article
Uncontrolled Keywords:	singularity; regular black holes; nonlinear electrodynamics
Subjects:	NATURAL SCIENCES NATURAL SCIENCES > Physics > Physics of Elementary Particles and Fields
Divisions:	Theoretical Physics Division
Projects:	Project title Project leader Project code Project type Potraga za kvantnim prostorvremenom u spektru KNM za crne rupe i bljeskovima gama zraka-QBHQNMGRB Anđelo Samsarov; Ivica Smolić; Marija Dimitrijević-Ćirić; Salvatore Mignemi; Kumar Shankar Gupta; Nikola Konjik IP-2020-02-9614 HRZZ
Depositing User:	Tajron Jurić
Date Deposited:	08 Feb 2024 09:06
URI:	http://fulir.irb.hr/id/eprint/8481
DOI:	10.1103/PhysRevD.106.064020

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