240 citations · 267 across the 6 of their papers we have counts for
6 papers
Celestial IR divergences in general most-subleading-color gluon and gravity amplitudes
Horatiu Nastase, Francisco Rojas, Carlos Rubio
Gluon amplitudes at most-subleading order in the expansion share a remarkable simplicity with graviton amplitudes: collinear divergences are completely absent in both and, as…
Hubble tension and matter inhomogeneities: a theoretical perspective
Marco San Martín, Carlos Rubio
We have studied how local density perturbations could reconcile the Hubble tension. We reproduced a local void through a perturbed FLRW metric with a potential which depends on…
Observational constraints in Delta Gravity: CMB and supernovas
Jorge Alfaro, Marco San Martín, Carlos Rubio
Delta Gravity is a gravitational model based on an extension of General Relativity given by a new symmetry called . In this model, new matter fields are added to the origi…
Cosmological Fluctuations in Delta Gravity
Jorge Alfaro, Carlos Rubio, Marco San Martín
About 70\% of the Universe is Dark Energy, but the physics community still does not know what it is. Delta Gravity (DG) is an alternative theory of gravitation that could solve thi…
Gravitational decoupled anisotropies in compact stars
Luciano Gabbanelli, Ángel Rincón, Carlos Rubio
Simple generic extensions of isotropic Durgapal--Fuloria stars to the anisotropic domain are presented. These anisotropic solutions are obtained by guided minimal deformations over…
Quantization of the Universe as a Dirac Particle: Geometrical Unification of Gravitation, Dark Energy and Multiverses
Sergio A. Hojman, Felipe A. Asenjo, Carlos A. Rubio
A Friedmann--Robertson--Walker Universe is studied with a dark energy component represented by a quintessence field. The Lagrangian for this system, hereafter called the Friedmann-…