3 papers
gr-qc2026
Spherically Symmetric Potentials in Quadratic Gravity
Roger Anderson Hurtado
We study the gravitational potential generated by static, spherically symmetric matter distributions in a quadratic gravity model. In the weak-field regime, the linearized f…
astro-ph.CO2025
Bayesian Inference of Primordial Magnetic Field Parameters from CMB with Spherical Graph Neural Networks
Juan Alejandro Pinto Castro, Héctor J. Hortúa, Jorge Enrique GarcÃa-Farieta +1
Deep learning has emerged as a transformative methodology in modern cosmology, providing powerful tools to extract meaningful physical information from complex astronomical dataset…
gr-qc2025
Linearized Gravity in the Starobinsky Model: Perturbative Deviations from General Relativity
Roger Anderson Hurtado
In this work, we linearize the field equations of gravity using the Starobinsky model, , and examine the modifications to General Relativity. We derive an equa…