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

Yang, Yisong

doi:10.1088/1361-6382/ac840b

Cited by 9 publications

(3 citation statements)

References 105 publications

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“…On the other hand, solutions admitting timelike naked singularities are investigated by probing the singularity with quantum wave packets. It is worth emphasizing here that there are c number of interesting solutions in the literature that involves nonlinear electrodynamics fields in different form of Lagrangian [61][62][63][64][65][66][67][68][69]. Analysis of those solutions would be an interesting task an our future studies along this direction.…”

Section: Discussionmentioning

confidence: 96%

On thermal fluctuations and quantum regularities of F ( R , G ) gravity black holes with constant topological Euler density in nonlinear electrodynamics

Mangut,

Gürtuğ,

Sakallı

2024

Phys. Scr.

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We discuss the corrected thermodynamics and naked singularity structure of the topological static spherically symmetric solution in F(R, G) - gravity coupled with Born-Infeld - like nonlinear electrodynamics. Solutions admitting black holes with constant topological Euler density is analyzed in view of various thermodynamical variables. The inclusion of logarithmic correction to the entropy is extended to the other thermodynamical variables and the contribution of corrected variables are displayed on various plots. The stability of black hole under the effect of thermal variables is also studied. As a second scope of this study, solutions admitting timelike naked singularity are probed with bosonic and fermionic quantum wave packets to see if the singularity is quantum mechanically regular or not. In this context, the evolution of these probes remains well-defined if the corresponding spatial Hamiltonian operator is essentially self-adjoint. Our calculations reveal that when the singularity is probed with specific wave modes involving spin - 0 and spin - ½ quantum wave packets, the corresponding wave operators turn out to be essentially self-adjoint, which in turn implies unique well-defined time evolution.

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Section: Discussionmentioning

confidence: 96%

On thermal fluctuations and quantum regularities of F ( R , G ) gravity black holes with constant topological Euler density in nonlinear electrodynamics

Mangut,

Gürtuğ,

Sakallı

2024

Phys. Scr.

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“…Review of some NED Lagrangians was presented in [61]. Lagrangian (A1) was used in [62,63,64] to construct static and spherically symmetric black hole solutions in the Einstein-Euler-Heisenberg system.…”

Section: Joule-thomson Expansionmentioning

confidence: 99%

Magnetic black holes in AdS space with nonlinear electrodynamics, extended phase space thermodynamics and Joule–Thomson expansion

Kruglov

2022

Int. J. Geom. Methods Mod. Phys.

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This paper studies thermodynamics of magnetically charged black holes in Anti-de Sitter space in an extended phase space. The cosmological constant is considered as a pressure and the black hole mass is treated as the chemical enthalpy. The black hole thermodynamics is similar to the Van der Walls liquid–gas thermodynamics. Quantities conjugated to the nonlinear electrodynamics parameter and a magnetic charge are obtained. The first law of thermodynamics and the generalized Smarr relation take place. We investigate critical behavior of black holes and Joule–Thomson expansion. The Gibbs free energy, the Joule–Thomson coefficient and the inversion temperature are calculated.

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“…In addition, BI has been studied as coupling with general relativity [61]. In recent years, Einstein-Born-Infeld gravity has been studied in various papers [62][63][64][65][66][67][68][69][70][71][72][73][74][75][76]. Magnetically charged BH has been studied with the presence of BI NLED [77], as well as other NLEDs [58,78].…”

Section: Introductionmentioning

confidence: 99%

Observational appearances of magnetically charged black holes in Born–Infeld electrodynamics

2023

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In this paper, we investigate the observational appearances of magnetically charged black holes in Born–Infeld (BI) electrodynamics. We examine the effects of the magnetic charge and the BI parameter on the geodesics with different impact parameters. Using the backward ray tracing method, we investigate how spherically symmetric accretions interact with black hole shadows and photon spheres. The shadows of infalling accretion are darker than that of static ones. Moreover, the radius of the photon sphere is an intrinsic property of the spacetime independent of accretions. We then study how the thin disk models affect the black hole shadows. After obtaining the transfer functions, we divide photons emitted from the thin disk into three categories: direct emission, lens ring, and photon ring. Applying three emission models, we find that the width of the shadow is dominated by the direct emission, the photon ring and the lens ring can hardly be identified by changing the emission models.

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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

Cited by 9 publications

References 105 publications

On thermal fluctuations and quantum regularities of F ( R , G ) gravity black holes with constant topological Euler density in nonlinear electrodynamics

On thermal fluctuations and quantum regularities of F ( R , G ) gravity black holes with constant topological Euler density in nonlinear electrodynamics

Magnetic black holes in AdS space with nonlinear electrodynamics, extended phase space thermodynamics and Joule–Thomson expansion

Observational appearances of magnetically charged black holes in Born–Infeld electrodynamics

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