Dyonic black holes in framework of Born–Infeld-type electrodynamics

Kruglov, S. I.

doi:10.1007/s10714-019-2603-5

Cited by 14 publications

(7 citation statements)

References 84 publications

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“…In [68,69], a more general model than (6.1) is proposed and the asymptotic expression of the electric field of an electric point charge is obtained. In [71], this model at p = 3 4 is considered to produce dyonic black hole solutions of the Reissner-Nordström type. It is seen that (6.1) is made to satisfy the condition (2.4) in order to accommodate the Maxwell theory.…”

Section: Fractional-powered Nonlinearitymentioning

confidence: 99%

“…In fact, such models are known to exist in literature. For example, we will see that in the arcsin-model [64,70] and a subclass of the fractional-powered model [71], monopoles are not allowed, although electric point charges are allowed, in view of the finite-energy condition. Instead of considering individual models, here, we shall show that such a breakdown of electric and magnetic point charge symmetry, referred to as electromagnetic asymmetry, may be regarded as a general property of nonlinear electrodynamics with a polynomial type nonlinearity.…”

Section: Introductionmentioning

confidence: 99%

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Electromagnetic asymmetry, relegation of curvature singularities of charged black holes, and cosmological equations of state in view of the Born–Infeld theory

Yang

2022

Class. Quantum Grav.

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It is shown that the Born--Infeld nonlinear electrodynamics with a polynomial type nonlinearity accommodates finite-energy electric point charges but rejects finite-energy magnetic point charges, or monopoles, thereby spelling out an electromagnetic asymmetry. Moreover, it is demonstrated, in a systematic way, that the curvature singularities of finite-energy charged black holes in the context of the Born--Infeld theory may effectively be relegated or in some cases removed under a critical mass-energy condition, which has been employed successfully in earlier concrete studies. Furthermore, it is illustrated through numerous examples considered here that, when adapted to describe scalar-wave matters known as k-essences, the Born--Infeld formalism provides a fertile ground for cosmological applications, including achieving accelerated dark-energy expansions and acquiring adequate field-theoretical realizations of the equations of state of various cosmic fluid models.

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Section: Fractional-powered Nonlinearitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electromagnetic asymmetry, relegation of curvature singularities of charged black holes, and cosmological equations of state in view of the Born–Infeld theory

Yang

2022

Class. Quantum Grav.

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“…where 0 < p < 1. In [62], this model at p = 3 4 is considered to produce dyonic black hole solutions of the Reissner-Nordström type. It is seen that (6.1) is made to satisfy the condition (2.4) in order to accommodate the Maxwell theory.…”

Section: Fractional-powered Nonlinearitymentioning

confidence: 99%

“…In fact, such models are known to exist in literature. For example, we will see that in the arcsin-model [60,61] and a subclass of the fractional-powered model [62], monopoles are not allowed, although electric point charges are allowed, in view of the finite-energy condition. Instead of considering individual models, here, we shall show that such a breakdown of electric and magnetic point charge symmetry, referred to as electromagnetic asymmetry, may be regarded as a generic property of nonlinear electrodynamics.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Asymmetry, Relegation of Curvature Singularities of Charged Black Holes, and Cosmological Equations of State in View of the Born--Infeld Theory

Yang¹

2021

Preprint

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It is shown that, in a generic sense, and unlike what for electric point charges, the Born-Infeld nonlinear electrodynamics excludes monopoles as finite-energy magnetic point charges, thus spelling out an electromagnetic asymmetry. Moreover, it is demonstrated, in a systematic way, that the curvature singularities of finite-energy charged black holes in the context of the Born-Infeld theory may effectively be relegated or in some cases removed under a critical massenergy condition, which has been employed successfully in earlier concrete studies. Furthermore, it is illustrated through numerous examples considered here that, when adapted to describe scalar-wave matters known as k-essences, the Born-Infeld formalism provides a fertile ground for cosmological applications, including achieving accelerated dark-energy expansions and acquiring adequate field-theoretical realizations of the equations of state of various cosmic fluid models.

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“…Cai et al [54] studied the BH solution and its thermodynamic properties in Born-Infeld theory. The coupling of GR and some other nonlinear electrodynamics models have also been studied providing us with some useful results in BH physics [56][57][58][59][60]. Javed et al [60] considered a magnetized nonlinear electrodynamics BH and studied the effect of nonlinear electrodynamics parameter β on the deflection angle in the vicinity of BH.…”

Section: Introductionmentioning

confidence: 99%

Optical features of rotating black hole with nonlinear electrodynamics

Zubair

Abbas

2022

Eur. Phys. J. C

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In this article, we considered the strong field approximation of nonlinear electrodynamics black hole and constructed its rotating counterpart by applying the modified Newman–Janis algorithm. The corresponding metric function in the strong field limit of the static black hole is identified in order to study the radius of photon sphere. However, the metric function for the rotating counterpart in the strong field limit is considered in order to study the horizon radius w.r.t spin parameter. We considered the Hamilton–Jacobi method to derive the geodesic equations for photon and constructed an orthonormal tetrad for deriving the equations for celestial coordinates in the observer’s sky. Shadows, distortions and energy emission rates are investigated and the results are compared for different values of nonlinear electrodynamics parameter, charge and spin. It is found that the presence of the nonlinear electrodynamics parameter affects the shape and size of the shadows and thus the distortion in the case of rotation. It is also found that the nonlinearity of electrodynamics diminishes the flatness in the shadow due to the effect of spin and other parameters.

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Dyonic black holes in framework of Born–Infeld-type electrodynamics

Cited by 14 publications

References 84 publications

Electromagnetic asymmetry, relegation of curvature singularities of charged black holes, and cosmological equations of state in view of the Born–Infeld theory

Electromagnetic asymmetry, relegation of curvature singularities of charged black holes, and cosmological equations of state in view of the Born–Infeld theory

Electromagnetic Asymmetry, Relegation of Curvature Singularities of Charged Black Holes, and Cosmological Equations of State in View of the Born--Infeld Theory

Optical features of rotating black hole with nonlinear electrodynamics

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