78 citations · 112 across the 3 of their papers we have counts for
13 papers
Theoretical and Observational Aspecs in Metric-Affine Gravity: A field theoretic perspective
Adrià Delhom
In this PhD thesis we deal with several theoretical and phenomenological apsects of metric-affine theories of gravity. Concretely, we first give a broad introduction to the necessa…
Born-Infeld Gravity: Constraints from Light-by-Light Scattering and an Effective Field Theory Perspective
Jose Beltrán Jiménez, Adrià Delhom, Gonzalo J. Olmo +1
By using a novel technique that establishes a correspondence between general relativity and metric-affine theories based on the Ricci tensor, we are able to set stringent constrain…
Comment on "Einstein-Gauss-Bonnet Gravity in Four-Dimensional Spacetime"
Julio Arrechea, Adrià Delhom, Alejandro Jiménez-Cano
We argue that several statements in Phys. Rev. Lett. 124, 081301 (2020) are not correct.
Anisotropic deformations in a class of projectively-invariant metric-affine theories of gravity
Jose Beltrán Jiménez, Daniel de Andrés, Adrià Delhom
Among the general class of metric-affine theories of gravity, there is a special class conformed by those endowed with a projective symmetry. Perhaps the simplest manner to realise…
Instabilities in Metric-Affine Theories of Gravity
Jose Beltrán Jiménez, Adrià Delhom
We discuss the presence of ghostly instabilities for metric-affine theories constructed with higher order curvature terms. We mainly focus on theories containing only the Ricci ten…
Inconsistencies in four-dimensional Einstein-Gauss-Bonnet gravity
Julio Arrechea, Adrià Delhom, Alejandro Jiménez-Cano
We attempt to clarify several aspects concerning the recently presented four-dimensional Einstein-Gauss-Bonnet gravity. We argue that the limiting procedure outlined in [Phys. Rev.…