362 citations · 5.2k across the 125 of their papers we have counts for
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Black hole solutions in functional extensions of Born-Infeld gravity
Cosimo Bambi, D. Rubiera-Garcia, Yixu Wang
We consider electrovacuum black hole spacetimes in classical extensions of Eddington-inspired Born-Infeld gravity. By rewriting Born-Infeld action as the square root of the determi…
Geodesically complete BTZ-type solutions of Born-Infeld gravity
D. Bazeia, L. Losano, Gonzalo J. Olmo +1
We study Born-Infeld gravity coupled to a static, nonrotating electric field in dimensions and find exact analytical solutions. Two families of such solutions represent geode…
Unveiling the Dynamics of the Universe
Pedro Avelino, Tiago Barreiro, C. Sofia Carvalho +10
We explore the dynamics and evolution of the Universe at early and late times, focusing on both dark energy and extended gravity models and their astrophysical and cosmological con…
Nonsingular black holes in Palatini extensions of General Relativity
Gonzalo J. Olmo
An introduction to extended theories of gravity formulated in metric-affine (or Palatini) spaces is presented. Focusing on spherically symmetric configurations with electric fields…
Palatini wormholes and energy conditions from the prism of General Relativity
Cecilia Bejarano, Francisco S. N. Lobo, Gonzalo J. Olmo +1
Wormholes are hypothetical shortcuts in spacetime that in General Relativity unavoidably violate all of the pointwise energy conditions. In this paper, we consider several wormhole…
Impact of curvature divergences on physical observers in a wormhole space-time with horizons
Gonzalo J. Olmo, D. Rubiera-Garcia, A. Sanchez-Puente
The impact of curvature divergences on physical observers in a black hole space-time which, nonetheless, is geodesically complete is investigated. This space-time is an exact solut…
Wormholes as a cure for black hole singularities
Gonzalo J. Olmo, Diego Rubiera-Garcia, Antonio Sanchez-Puente
Using exactly solvable models, it is shown that black hole singularities in different electrically charged configurations can be cured. Our solutions describe black hole space-time…
Geons as wormholes of modified gravity
Gonzalo J. Olmo, Diego Rubiera-Garcia
Wormholes may arise as solutions of extensions of General Relativity without violation of the energy conditions. Working in a Palatini approach we consider classical geometries sup…