Dynamical and thermal stabilities of nonlinearly charged AdS black holes

Sajadi, S. N.; Riazi, N.; Hendi, S. H.

doi:10.1140/epjc/s10052-019-7272-8

Cited by 21 publications

(11 citation statements)

References 76 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The AdS/CFT correspondence suggest that for large e, quasinormal ringing becomes slower to settle down to thermal equilibrium and also, the frequency of the oscillation becomes smaller. Our results are very much consistent with literature work [42]. Figure 5 demonstrates the behavior of the effective potential versus the tortoise coordinater.…”

Section: A Wavelike Of Hayward Bh In Egb Gravitysupporting

confidence: 91%

See 1 more Smart Citation

Quasinormal Modes of Extended Gravity Black Holes

Jawad¹,

Chaudhary²,

Yasir³

et al. 2020

Preprint

View full text Add to dashboard Cite

Black hole's quasinormal frequencies are basically the complex numbers which provide information about the relaxation of perturbations and depend on the characteristics of the spacetime and types of perturbations. In this paper, we evaluate the quasinormal modes of Hayward black hole in Einstein Gauss-Bonnet gravity, Hayward black hole in anti-de Sitter space (AdS) spacetime, and 4-dimensional black hole in Einstein-Lovelock gravity. By utilizing the WKB resonance technique, we examine the quasinormal modes frequencies $\omega$ by shifting the charge parameter $Q$ (it is also identified with the cosmological constant), circular harmonic index $l$, and mass of scalar field $m$. We also study the relaxation rate for those black holes and find out that the relaxation rate increases with increasing values of $Q$. We observe that real and imaginary components of the quasinormal modes are not linear functions as similar to Reisnner Nordstr\"{o}m-AdS. For large values of charge, quasinormal ringing becomes slower to settle down to thermal equilibrium and hence the frequency of the oscillation becomes smaller.

show abstract

Section: A Wavelike Of Hayward Bh In Egb Gravitysupporting

confidence: 91%

“…In Figure 22 the imaginary part of quasinormal frequencies ω I increases and then decreases for different values of electric charge. For the increasing values of r 0 , the corresponding electric charge increases and ω I reaches to the maximum value [42]. Figure 23 shows the behavior V with increasing r 0 for different values of Q.…”

Section: Bh In 4d El Gravitymentioning

confidence: 97%

Quasinormal Modes of Extended Gravity Black Holes

Jawad¹,

Chaudhary²,

Yasir³

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…We should note that QNMs of regular black holes have been studied before [73]- [75]. The behavior of QNMs at the thermodynamics phase transitions has been studied in [76,77]. Moreover, the relation between the QNFs and the thermodynamical quantities at eikonal limit for static solution [78] and for rotating one [79] has been studied.…”

Section: Introductionmentioning

confidence: 99%

Physical Properties of a Regular Rotating Black Hole: Thermodynamics, Stability, Quasinormal Modes

Hendi,

Sajadi,

Khademi

2020

Preprint

Self Cite

View full text Add to dashboard Cite

Respecting the angular momentum conservation of torque-free systems, it is natural to consider rotating solutions of massive objects. Besides that, motivated by the realistic astrophysical black holes that rotate, we use the Newman-Janis formalism to construct a regular rotating black hole. We start with a nonlinearly charged regular static black hole in the framework of the standard general relativity and then obtain the associated rotating solution through such a formalism. We investigate the geometrical properties of the metric by studying the boundary of ergosphere. We also analyze thermodynamic properties of the solution in AdS spacetime and examine thermal stability and possible phase transition. In addition, we perturb the black hole by using of a real massless scalar field as a probe to investigate its dynamic stability. We obtain an analytic expression for the real and imaginary parts of the quasinormal frequencies. Finally, we look for a connection between the quasinormal frequencies and the properties of the photon sphere in the eikonal limit.

show abstract

“…Our starting point is the following action in which gravity is coupled to nonlinear electrodynamics fields [117,118]…”

Section: Computation Of Weak Lensing By Non Linear Electrodynamics Black Hole Within the Gauss-bonnet Theoremmentioning

confidence: 99%

“…where R denotes the scalar curvature and L(F ) is a function of the invariant F := 1 4 F µν F µν andF := 1 4 F µν F µν built form Faraday tensor F = 1 2 F µν dx µ ∧ dx ν and its Hodge dual F. In this paper, we will deal with the non-linear electrodynamics terms L(F ) are explicitly given by [117,118]…”

Section: Computation Of Weak Lensing By Non Linear Electrodynamics Black Hole Within the Gauss-bonnet Theoremmentioning

confidence: 99%

Weak Deflection Angle of some Classes of non-linear Electrodynamics Black Holes via Gauss-Bonnet Theorem

Moumni¹,

Masmar²,

Овгун³

2020

Preprint

View full text Add to dashboard Cite

In this paper, we study the gravitational lensing by some black hole classes within the non-linear electrodynamics in weak field limits. First, we calculate an optical geometry of the non-linear electrodynamics black hole then we use the Gauss-Bonnet theorem for finding deflection angle in weak field limits. The effect of non-linear electrodynamics on the deflection angle in leading order terms is studied. Furthermore, we discuss the effects of the plasma medium on the weak deflection angle.

show abstract

Dynamical and thermal stabilities of nonlinearly charged AdS black holes

Cited by 21 publications

References 76 publications

Quasinormal Modes of Extended Gravity Black Holes

Quasinormal Modes of Extended Gravity Black Holes

Physical Properties of a Regular Rotating Black Hole: Thermodynamics, Stability, Quasinormal Modes

Weak Deflection Angle of some Classes of non-linear Electrodynamics Black Holes via Gauss-Bonnet Theorem

Contact Info

Product

Resources

About