6533b850fe1ef96bd12a82f0

RESEARCH PRODUCT

NONSINGULAR BLACK HOLES IN PALATINI EXTENSIONS OF GENERAL RELATIVITY

Gonzalo J. OlmoGonzalo J. OlmoDiego Rubiera-garcia

subject

Black holePhysicsGeneral Relativity and Quantum CosmologyNumerical relativityGravity (chemistry)SingularityGeneral relativityStructure (category theory)WormholeRicci curvatureMathematical physics

description

An introduction to extended theories of gravity formulated in metric-affine (or Palatini) spaces is presented. Focusing on spherically symmetric configurations with electric fields, we will see that in these theories the central singularity present in General Relativity is generically replaced by a wormhole structure. The resulting space-time becomes geodesically complete and, therefore, can be regarded as non-singular. We illustrate these properties considering two different models, namely, a quadratic f(R) theory and a Born-Infeld like gravity theory.

https://doi.org/10.1142/9789814623995_0133