306 citations · 1.1k across the 39 of their papers we have counts for
6 papers · 1 filter
Higgs-like inflation in scalar-torsion gravity in light of ACT-SPT-DESI constraints
Nitesh Kumar, Giovanni Otalora, Rodrigo Reyes +3
We study Higgs-like inflation in the framework of scalar-torsion gravity, focusing on the general class of theories in which gravitation is mediated by torsion rather than…
Cosmological dynamics of interacting dark matter-dark energy in generalized Rastall gravity
Manuel Gonzalez-Espinoza, Ramón Herrera, Giovanni Otalora +2
In this work, we investigate late-time interacting cosmologies within the framework of generalized Rastall gravity, where the interaction arises naturally from the non-conservation…
Slow-Fast Evolution of Scalar Fields in Higher-Order Cosmological Gravity: Dynamics Inspired by the Pais--Uhlenbeck Oscillator
Manuel Gonzalez-Espinoza, Genly Leon, Yoelsy Leyva +3
We investigate the cosmological dynamics of scalar fields governed by higher-order gravity, with particular emphasis on models inspired by the Pais-Uhlenbeck oscillator--a prototyp…
Late-time acceleration and structure formation in interacting -attractor dark energy models
L. K. Duchaniya, B. Mishra, G. Otalora +1
We investigate the cosmological dynamics of interacting dark energy within the framework of -attractor models. Specifically, we analyze the associated autonomous system, focusin…
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
Classical and quantum cosmology of gravity's rainbow in Schutz's formalism
Andrés Burton-Villalobos, Giovanni Otalora, Manuel Gonzalez-Espinoza +1
We investigate the classical and quantum dynamics of gravity's rainbow in the presence of a perfect fluid, employing Schutz's formalism to establish a well-defined notion of…