Topological dyonic dilaton black holes in AdS spaces

We construct a new class of dyonic dilaton black hole solutions in the background of anti–de Sitter (AdS) spacetime. In order to find an analytical solution that satisfies all the field equations, we consider the string case where the dilaton coupling is α = 1 . The asymptotic behavior of the soluti...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. D 2019-01, Vol.99 (2), p.024028, Article 024028
Main Authors: Hajkhalili, S., Sheykhi, A.
Format: Article
Language:English
Subjects:
Asymptotic properties
Black holes
Curvature
Dilatons
Mathematical analysis
Physical properties
Relativity
Spacetime
Stability analysis
Thermal stability
Thermodynamics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We construct a new class of dyonic dilaton black hole solutions in the background of anti–de Sitter (AdS) spacetime. In order to find an analytical solution that satisfies all the field equations, we consider the string case where the dilaton coupling is α = 1 . The asymptotic behavior of the solution (r → ∞) is exactly AdS, where the dilaton field becomes zero and the metric function reduces to f ( r ) → − Λ r2/3. In this spacetime, black hole horizons and cosmological horizons can be a two-dimensional positive, zero, or negative constant curvature surface. We study the physical properties of the solutions and show that, depending on the metric parameters, these solutions can describe black holes with one or two horizons or a naked singularity. We investigate thermodynamics of the solutions by calculating their charge, mass, temperature, entropy, and electric potential and disclose that these conserved and thermodynamic quantities satisfy the first law of black hole thermodynamics. We also analyze the thermal stability of the solutions and find the conditions for which we have a stable dyonic dilaton black hole.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.99.024028