Thermodynamic Stability of a New Three Dimensional Regular Black Hole

Hendi, S. H.; Hajkhalili, S.; Mahmoudi, S.

doi:10.1002/prop.202200101

Cited by 4 publications

(2 citation statements)

References 90 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Regular black holes are also known to exist in (2 + 1) dimensions [ 11 ]. In particular, configurations with non-linear electrodynamics as an additional matter source have been extensively investigated [ 12 , 13 , 14 , 15 , 16 , 17 ]. In the present work, we will study a 3D black hole that contains as its additional matter sources a cosmological constant and a scalar field.…”

Section: Introductionmentioning

confidence: 99%

Geometrothermodynamics of 3D Regular Black Holes

Beissen

2024

Entropy

View full text Add to dashboard Cite

We investigate a spherically symmetric exact solution of Einstein’s gravity with cosmological constant in (2 + 1) dimensions, non-minimally coupled to a scalar field. The solution describes the gravitational field of a black hole, which is free of curvature singularities in the entire spacetime. We use the formalism of geometrothermodynamics to investigate the geometric properties of the corresponding space of equilibrium states and find their interpretation from the point of view of thermodynamics. It turns out that, as a result of the presence of thermodynamic interaction, the space of equilibrium states is curved with two possible configurations, which depend on the value of a coupling constant. In the first case, the equilibrium space is completely regular, corresponding to a stable thermodynamic system. The second case is characterized by the presence of two curvature singularities, which are shown to correspond to locations where the system undergoes two different phase transitions, one due to the breakdown of the thermodynamic stability condition and the second one due to the presence of a divergence at the level of the response functions.

show abstract

Section: Introductionmentioning

confidence: 99%

Geometrothermodynamics of 3D Regular Black Holes

Beissen

2024

Entropy

View full text Add to dashboard Cite

show abstract

“…In reference [8], it was demonstrated that the nature of LSM in this model is incompatible with the behavior of nonlinear electrodynamics sources. Also, there's a recent generalization of this latter model in reference [9].…”

Section: Introductionmentioning

confidence: 99%

A new class of regular black holes in Einstein Gauss-Bonnet gravity with localized sources of matter

Estrada

Aros

2023

Physics Letters B

View full text Add to dashboard Cite

New models of d-dimensional black holes without inner horizon and with an integrable singularity

Estrada,

Alencar,

Crispim

et al. 2024

J. Cosmol. Astropart. Phys.

View full text Add to dashboard Cite

Theoretically, it has been proposed that objects traveling radially along regular black holes (RBHs) would not be destroyed because of finite tidal forces and the absence of a singularity. However, the matter source allows the creation of an inner horizon linked to an unstable de Sitter core due to mass inflation instability. This inner horizon also gives rise to the appearance of a remnant, inhibiting complete evaporation. We introduce here a d-dimensional black hole model with Localized Sources of Matter (LSM), characterized by the absence of an inner horizon and featuring a central integrable singularity instead of an unstable de Sitter core. In our model, any object tracing a radial and timelike world-line would not be crushed by the singularity. This is attributed to finite tidal forces, the extendability of radial geodesics, and the weak nature of the singularity. Our LSM model enables the potential complete evaporation down to r h = 0 without forming a remnant. In higher dimensions, complete evaporation occurs through a phase transition, which could occur at Planck scales and be speculatively driven by the Generalized Uncertainty Principle (GUP). Unlike RBHs, our model satisfies the energy conditions. We demonstrate a linear correction to the conventional area law of entropy, distinct from the RBH's correction. Additionally, we investigate the stability of the solutions through the speed of sound.

show abstract

Thermodynamic Stability of a New Three Dimensional Regular Black Hole

Cited by 4 publications

References 90 publications

Geometrothermodynamics of 3D Regular Black Holes

Geometrothermodynamics of 3D Regular Black Holes

A new class of regular black holes in Einstein Gauss-Bonnet gravity with localized sources of matter

New models of d-dimensional black holes without inner horizon and with an integrable singularity

Contact Info

Product

Resources

About