362 citations · 5.2k across the 125 of their papers we have counts for
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Multicenter solutions in Eddington-inspired Born-Infeld gravity
Gonzalo J. Olmo, Emanuele Orazi, Diego Rubiera-Garcia
We find multicenter (Majumdar-Papapetrou type) solutions of Eddington-inspired Born-Infeld gravity coupled to electromagnetic fields governed by a Born-Infeld-like Lagrangian. We c…
New scalar compact objects in Ricci-based gravity theories
Victor I. Afonso, Gonzalo J. Olmo, Emanuele Orazi +1
Taking advantage of a previously developed method, which allows to map solutions of General Relativity into a broad family of theories of gravity based on the Ricci tensor (Ricci-b…
On gravitational waves in Born-Infeld inspired non-singular cosmologies
Jose Beltran Jimenez, Lavinia Heisenberg, Gonzalo J. Olmo +1
We study the evolution of gravitational waves for non-singular cosmological solutions within the framework of Born-Infeld inspired gravity theories, with special emphasis on the Ed…
What is a singular black hole beyond General Relativity?
Cecilia Bejarano, Gonzalo J. Olmo, Diego Rubiera-Garcia
Exploring the characterization of singular black hole spacetimes, we study the relation between energy density, curvature invariants, and geodesic completeness using a quadratic $f…
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…
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…
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…
Robustness of braneworld scenarios against tensorial perturbations
D. Bazeia, L. Losano, R. Menezes +2
Inspired by the peculiarities of the effective geometry of crystalline structures, we reconsider thick brane scenarios from a metric-affine perspective. We show that for a rather g…
Nonsingular Black Holes in Theories
Gonzalo J. Olmo, D. Rubiera-Garcia
We study the structure of a family of static, spherically symmetric space-times generated by an anisotropic fluid and governed by a particular type of theory. We find that f…
Geodesic completeness in a wormhole spacetime with horizons
Gonzalo J. Olmo, D. Rubiera-Garcia, A. Sanchez-Puente
The geometry of a spacetime containing a wormhole generated by a spherically symmetric electric field is investigated in detail. These solutions arise in high-energy extensions of…
The quantum, the geon, and the crystal
Gonzalo J. Olmo, D. Rubiera-Garcia
Effective geometries arising from a hypothetical discrete structure of space-time can play an important role in the understanding of the gravitational physics beyond General Relati…
Classical resolution of black hole singularities in arbitrary dimension
D. Bazeia, L. Losano, Gonzalo J. Olmo +2
A metric-affine approach is employed to study higher-dimensional modified gravity theories involving different powers and contractions of the Ricci tensor. It is shown that the fie…
Classical resolution of black hole singularities via wormholes
Gonzalo J. Olmo, D. Rubiera-Garcia, A. Sanchez-Puente
In certain extensions of General Relativity, wormholes generated by spherically symmetric electric fields can resolve black hole singularities without necessarily removing curvatur…
Gauss-Bonnet black holes supported by a nonlinear electromagnetic field
D. Rubiera-Garcia
We study -dimensional charged static spherically symmetric black hole solutions in Gauss-Bonnet theory coupled to nonlinear electrodynamics defined as arbitrary functions of the…
Crystal clear lessons on the microstructure of space-time and modified gravity
Francisco S. N. Lobo, Gonzalo J. Olmo, D. Rubiera-Garcia
We argue that a microscopic structure for space-time such as that expected in a quantum foam scenario, in which microscopic wormholes and other topological structures should play a…
Thick brane in gravity with Palatini dynamics
D. Bazeia, L. Losano, R. Menezes +2
This work deals with modified gravity in five dimensional spacetime. We study a thick Palatini brane, that is, a braneworld scenario described by an anti-de Sitter warped ge…
Born-Infeld gravity and its functional extensions
Sergei D. Odintsov, Gonzalo J. Olmo, D. Rubiera-Garcia
We investigate the dynamics of a family of functional extensions of the (Eddington-inspired) Born-Infeld gravity theory, constructed with the inverse of the metric and the Ricci te…
Brane-world and loop cosmology from a gravity-matter coupling perspective
Gonzalo J. Olmo, D. Rubiera-Garcia
We show that the effective brane-world and the loop quantum cosmology background expansion histories can be reproduced from a modified gravity perspective in terms of an gra…
Black holes in five-dimensional Palatini gravity and implications for the AdS/CFT correspondence
D. Bazeia, L. Losano, Gonzalo J. Olmo +1
We show that theories having second-order field equations in the context of higher-dimensional modified gravity are not restricted to the family of Lovelock Lagrangians, but can al…
Dynamical generation of wormholes with charged fluids in quadratic Palatini gravity
Francisco S. N. Lobo, Jesus Martinez-Asencio, Gonzalo J. Olmo +1
The dynamical generation of wormholes within an extension of General Relativity (GR) containing (Planck's scale-suppressed) Ricci-squared terms is considered. The theory is formula…
Microscopic wormholes and the geometry of entanglement
Francisco S. N. Lobo, Gonzalo J. Olmo, D. Rubiera-Garcia
It has recently been suggested that Einstein-Rosen (ER) bridges can be interpreted as maximally entangled states of two black holes that form a complex Einstein-Podolsky-Rosen (EPR…
Quadratic Palatini gravity and stable black hole remnants
Francisco S. N. Lobo, Gonzalo J. Olmo, D. Rubiera-Garcia
We present a four-dimensional Planck-scale corrected quadratic extension of General Relativity (GR) where no a priori relation between metric and connection is imposed (Palatini fo…
Planck scale physics and topology change through an exactly solvable model
Francisco S. N. Lobo, Jesus Martinez-Asencio, Gonzalo J. Olmo +1
We consider the collapse of a charged radiation fluid in a Planck-suppressed quadratic extension of General Relativity (GR) formulated à la Palatini. We obtain exact analytical sol…
Geonic black holes and remnants in Eddington-inspired Born-Infeld gravity
Gonzalo J. Olmo, D. Rubiera-Garcia, Helios Sanchis-Alepuz
We show that electrically charged solutions within the Eddington-inspired Born-Infeld theory of gravity replace the central singularity by a wormhole supported by the electric fiel…