141 citations · 1.3k across the 48 of their papers we have counts for
48 papers
In-depth analysis of violations of the (strong) equivalence principle in scalarized Einstein-Gauss-Bonnet theories
Martín G. Richarte, Júnior D. Toniato
We conducted a theoretical analysis of the violation of the equivalence principle within a broad class of scalar-Einstein-Gauss-Bonnet theories that exhibit spontaneous scalarizati…
The frozen vanilla model: Exploring dark sector interactions with delta effective theories
Martín G. Richarte, Luiz F. Guimarães, Susana J. Landau +1
In this paper, we introduce a new interacting mechanism within the dark sector, encompassing both dark energy and dark matter, while grounding our analysis in the familiar framewor…
Quasar Pairs as Large--Scale Structure tracers
Martín G. Richarte, Facundo Toscano, Diego G. Lambas +3
Quasars are effective tracers of the large-scale distribution of galaxies at high redshift thanks to their high luminosity and dedicated surveys. Previous studies have shown that q…
Exploring Scalarized Einstein-Gauss-Bonnet Theories Through the Lens of Parametrized Post-Newtonian Formalism
Martín G. Richarte, Júnior D. Toniato
We explore scalarized Einstein-Gauss-Bonnet theories within the context of the Parameterized Post-Newtonian formalism, which serves as a robust framework for examining modification…
Quasinormal modes and the analytical continuation of non-self-adjoint operators
M. G. Richarte, J. C. Fabris, A. Saa
We briefly review the analytical continuation method for determining quasinormal modes (QNMs) and the associated frequencies in open systems. We explore two exactly solvable cases…
A Post-Newtonian Analysis of Regularized 4D-EGB Theory: Complete Set of PPN Parameters and Observational Constraints
Júnior D. Toniato, Martín G. Richarte
We performed a post-Newtonian analysis of the regularized four-dimensional Einstein-Gauss-Bonnet gravitational theory (4D-EGB). The resulting metric differs from the classical para…