14 papers
Dynamics of the Bianchi~V cosmological model inspired by quintessential -attractors
Genly Leon, Amare Abebe, Andronikos Paliathanasis
We investigate scalar-field cosmologies in the Bianchi V spacetime using a dynamical-systems framework. Motivated by representative -attractor potentials - the E-model and T-mo…
Bianchi I spacetimes within 4D Einstein-Gauss-Bonnet scalar field theory
Alex Giacomini, Chevara Hansraj, Genly Leon +1
We investigate the evolution of anisotropies in Bianchi I spacetimes within the framework of the 4D Einstein-Gauss-Bonnet scalar field theory. The field equations are formulated us…
Challenging CDM with Higher-Order GUP Corrections
Andronikos Paliathanasis, Genly Leon, Yoelsy Leyva +2
We study quantum corrections to the CDM model model arising from a minimum measurable length in Heisenberg's uncertainty principle. We focus on a higher-order Generalized Uncer…
-cosmological dynamics in the FLRW background
Nikolaos Dimakis, Alex Giacomini, Genly Leon +3
We examine the cosmological dynamics of Einstein-Gauss-Bonnet gravity models in a four-dimensional spatially flat FLRW metric. These models are described by $f\left( R,\mathcal{G}\…
Constraints on Chiral-Quintom dark energy after DESI DR2 and impact on unifying dark energy with inflation
Andronikos Paliathanasis, Tommaso Mengoni, Genly Leon +1
The recent data release DR2 from the Dark Energy Spectroscopic Instrument (DESI) has reinforced compelling evidence supporting the dynamical nature of dark energy. In this respect,…
Averaging Dynamics of Scalar Field-Matter Interacting Models in Anisotropic Universes: The Locally Rotationally Symmetric Bianchi I Spacetime
Alfredo D. Millano, Genly Leon, Andronikos Paliathanasis
We consider an anisotropic cosmological model based on the locally rotational Bianchi I spacetime, incorporating a scalar field and a non-zero cosmological interaction term. The fr…