8 citations · 22 across the 10 of their papers we have counts for
11 papers
Observational constraints on Luciano-Saridakis holographic dark energy
Matías Leizerovich, Susana J. Landau, Giuseppe Gaetano Luciano +2
Holographic dark energy (HDE) models provide a natural framework for linking gravitational thermodynamics to the late-time accelerated expansion of the Universe. In this work, we i…
Observational constraints on Luciano-Saridakis entropic cosmology
Matías Leizerovich, Susana J. Landau, Giuseppe Gaetano Luciano +2
A recently proposed generalized entropy by Luciano and Saridakis extends the standard Boltzmann-Gibbs and Bekenstein-Hawking framework through a microscopically motivated construct…
Generalized tension metrics for multiple cosmological datasets
Matías Leizerovich, Susana J. Landau, Claudia G. Scóccola
We introduce a novel estimator to quantify statistical tensions among multiple cosmological datasets simultaneously. This estimator generalizes the Difference-in-Means statistic, $…
Evolution of linear matter perturbations with error-bounded bundle physics-informed neural networks
Luca Gomez Bachar, Augusto T. Chantada, Susana J. Landau +2
We consider the evolution of linear matter perturbations in the context of the standard cosmological model (CDM) and a phenomenological modified gravity model. We use the physic…
Geometric Cosmology models: statistical analysis with observational data
Matías Leizerovich, Luisa G. Jaime, Susana J. Landau +1
Although the standard cosmological model is capable of explaining most current observational data, it faces some theoretical and observational issues. This is the main motivation f…
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…
On Geometric Cosmology
Gustavo Arciniega, Luisa G. Jaime, Susana J. Landau +1
We present a modification to General Relativity by making a redefinition of the coupling constant in front of the Ricci curvature scalar along with the Generalized Quasi-topologica…
Exact and approximate error bounds for physics-informed neural networks
Augusto T. Chantada, Pavlos Protopapas, Luca Gomez Bachar +2
The use of neural networks to solve differential equations, as an alternative to traditional numerical solvers, has increased recently. However, error bounds for the obtained solut…
Cosmological perturbations with ultralight vector dark matter fields: numerical implementation in CLASS
Tomás Ferreira Chase, Matías Leizerovich, Diana López Nacir +1
In this work we consider a dark matter candidate described by an ultralight vector field, whose mass is in principle in the range . T…
Tensions in cosmology: a discussion of statistical tools to determine inconsistencies
Matías Leizerovich, Susana J. Landau, Claudia G. Scóccola
We present a comprehensive analysis of statistical tools for evaluating tensions in cosmological parameter estimates arising from distinct datasets. Focusing on the unresolved Hubb…
Faster Bayesian inference with neural network bundles and new results for models
Augusto T. Chantada, Susana J. Landau, Pavlos Protopapas +2
In the last few years, there has been significant progress in the development of machine learning methods tailored to astrophysics and cosmology. We have recently applied one of th…