Constraints on singularity resolution by nonlinear electrodynamics

Scientific paper - Original scientific paper

• Author: Ana Bokulić
• Author: Ivica Smolić
• Author: Tajron Jurić
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

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 𝐹𝑎⁢𝑏⁢𝐹𝑎⁢𝑏 only. We extend Bronnikov’s results by taking into account Lagrangians that depend on both electromagnetic invariants, 𝐹𝑎⁢𝑏⁢𝐹𝑎⁢𝑏 and 𝐹𝑎⁢𝑏⁢⋆𝐹𝑎⁢𝑏, 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.

• Keywords (english): nonlinear electromagnetic fields; singularities
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Physical Review D (particles, fields, gravitation, and cosmology)
• Numbering: vol. 106, no. 6, 064020
• p-ISSN: 2470-0010
• e-ISSN: 2470-0029
• DOI: https://doi.org/10.1103/PhysRevD.106.064020
• URN:NBN: urn:nbn:hr:217:457698
• Publication: 2022-09
• Project: Number: IP-2020-02-9614; Title (croatian): Potraga za kvantnim prostorvremenom u spektru KNM za crne rupe i bljeskovima gama zraka; Title (english): Search for Quantum spacetime in Black Hole QNM spectrum and Gamma Ray Bursts; Acronym: QBHQNMGRB; Leader: Anđelo Samsarov; Jurisdiction: Croatia; Funding stream: Research Projects
• Document URL: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.106.064020
• Type of resource: Text
• Access conditions: Open access
• Public note: © 2022 American Physical Society. Received 27 June 2022; accepted 18 August 2022; published 12 September 2022.
• Created on: 2024-08-21 08:37:45