Aspects of a novel nonlinear electrodynamics in flat spacetime and in a gravity-coupled scenario

Abstract A novel nonlinear electrodynamics (NLE) model with two dimensionful parameters is introduced and investigated. Our model obeys the Maxwellian limit and exhibits behaviour similar to the Born–Infeld Lagrangian in the weak field limit. It is shown that the electric field of a point charge in...

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Main Author: Anjan Kar
Format: Article
Language:English
Published: SpringerOpen 2024-12-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-024-13603-x
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author Anjan Kar
author_facet Anjan Kar
author_sort Anjan Kar
collection DOAJ
description Abstract A novel nonlinear electrodynamics (NLE) model with two dimensionful parameters is introduced and investigated. Our model obeys the Maxwellian limit and exhibits behaviour similar to the Born–Infeld Lagrangian in the weak field limit. It is shown that the electric field of a point charge in this model has a definite maximum value. Thus, the self-energy of the point charge is finite. The phenomenon of vacuum birefringence is found to occur in the presence of an external uniform electric field. Causality and unitarity conditions for all background electric fields hold, whereas, for magnetic fields, a restricted domain of validity is found. Moreover, a minimal coupling of Einstein’s General Relativity (GR) with this NLE results in solutions of regular black holes or naked singularities, depending on whether the source is a nonlinear magnetic monopole or an electric charge, respectively.
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institution Kabale University
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publishDate 2024-12-01
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series European Physical Journal C: Particles and Fields
spelling doaj-art-22c2261dea6d4a5b9688984e79c871a52025-02-02T12:39:35ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-12-01841211410.1140/epjc/s10052-024-13603-xAspects of a novel nonlinear electrodynamics in flat spacetime and in a gravity-coupled scenarioAnjan Kar0Department of Physics, Indian Institute of TechnologyAbstract A novel nonlinear electrodynamics (NLE) model with two dimensionful parameters is introduced and investigated. Our model obeys the Maxwellian limit and exhibits behaviour similar to the Born–Infeld Lagrangian in the weak field limit. It is shown that the electric field of a point charge in this model has a definite maximum value. Thus, the self-energy of the point charge is finite. The phenomenon of vacuum birefringence is found to occur in the presence of an external uniform electric field. Causality and unitarity conditions for all background electric fields hold, whereas, for magnetic fields, a restricted domain of validity is found. Moreover, a minimal coupling of Einstein’s General Relativity (GR) with this NLE results in solutions of regular black holes or naked singularities, depending on whether the source is a nonlinear magnetic monopole or an electric charge, respectively.https://doi.org/10.1140/epjc/s10052-024-13603-x
spellingShingle Anjan Kar
Aspects of a novel nonlinear electrodynamics in flat spacetime and in a gravity-coupled scenario
European Physical Journal C: Particles and Fields
title Aspects of a novel nonlinear electrodynamics in flat spacetime and in a gravity-coupled scenario
title_full Aspects of a novel nonlinear electrodynamics in flat spacetime and in a gravity-coupled scenario
title_fullStr Aspects of a novel nonlinear electrodynamics in flat spacetime and in a gravity-coupled scenario
title_full_unstemmed Aspects of a novel nonlinear electrodynamics in flat spacetime and in a gravity-coupled scenario
title_short Aspects of a novel nonlinear electrodynamics in flat spacetime and in a gravity-coupled scenario
title_sort aspects of a novel nonlinear electrodynamics in flat spacetime and in a gravity coupled scenario
url https://doi.org/10.1140/epjc/s10052-024-13603-x
work_keys_str_mv AT anjankar aspectsofanovelnonlinearelectrodynamicsinflatspacetimeandinagravitycoupledscenario