Hayward black hole in scalar-Einstein-Gauss-Bonnet gravity in four dimensions
Shin’ichi Nojiri, G. G. L. Nashed
Abstract
In the framework of scalar-Einstein-Gauss-Bonnet gravity, we construct the Hayward black hole model and discuss the absence of ghosts in this model. Because a Hayward black hole has two horizons but no curvature singularity, it may solve the problem of the information loss that might be generated by black holes. The Gauss-Bonnet term appears as a stringy correction, and therefore, our results might indicate that the stringy correction would solve the information loss problem.
Topics & Concepts
Gauss–Bonnet theoremPhysicsGauss–Bonnet gravityEinsteinScalar (mathematics)Black hole (networking)CurvatureTheoretical physicsScalar curvatureMathematical physicsSingularityHigher-dimensional Einstein gravityNaked singularityClassical mechanicsGravitational singularityGeneral relativityGeometryQuantum mechanicsNumerical relativityMathematicsComputer scienceRouting (electronic design automation)Routing protocolLink-state routing protocolComputer networkIntroduction to the mathematics of general relativityCosmology and Gravitation TheoriesBlack Holes and Theoretical PhysicsPulsars and Gravitational Waves Research