Zobrazeno 1 - 10
of 113
pro vyhledávání: '"Videla, Nelson"'
In the present work, we perform a comparative study of different interacting dark energy (DE) models using the Statefinder diagnostics. In particular, 17 different forms of the energy transfer rate $Q$ between DE and dark matter (DM) were focused on,
Externí odkaz:
http://arxiv.org/abs/2310.04324
Inspired by the reconstruction scheme of the inflaton field potential $V(\phi)$ from the attractors$n_s(N)$, we investigate the viability of reconstruct the inflationary potential within the framework of k-inflation for a non-linear kinetic term $K(X
Externí odkaz:
http://arxiv.org/abs/2305.05042
Publikováno v:
JCAP10(2021)021
In the present work, we study slow-roll inflation in scalar-tensor gravity theories in the presence of both the non-minimal coupling between the scalar field and curvature, and the Galileon self-interaction of the scalar field. Furthermore, we give p
Externí odkaz:
http://arxiv.org/abs/2107.07679
We study cosmological inflation and its dynamics in the framework of the Randall-Sundrum II brane model. In particular, we analyze in detail four representative small-field inflationary potentials, namely Natural inflation, Hilltop inflation, Higgs-l
Externí odkaz:
http://arxiv.org/abs/2101.08882
Publikováno v:
In Physics of the Dark Universe February 2024 43
Dynamics of cosmological inflation and predictions for reheating in the light of 2018 PLANCK results
We study the dynamics of two concrete inflationary models, namely Spontaneous Symmetry Breaking Inflation as well as Loop Inflation. We constrain the parameters for which a viable inflationary Universe emerges using the latest PLANCK results of last
Externí odkaz:
http://arxiv.org/abs/2001.05828
We study three interacting dark energy models within the framework of four-dimensional General Relativity and a spatially flat Universe. In particular, we first consider two vacuum models where dark energy interacts with dark matter, while relativist
Externí odkaz:
http://arxiv.org/abs/1912.01723
We study chaotic inflation with a Galileon-like self interaction $G(\phi,X)\Box \phi$, where $G(\phi,X)\propto X^{n}$. General conditions required for successful inflation are deduced and discussed from the background and cosmological perturbations u
Externí odkaz:
http://arxiv.org/abs/1908.03155
We study the dynamics of inflation in a generalized scalar-torsion gravity scenario by assuming a canonical scalar field non-minimally coupled to torsion with a Galileon-type self-interaction. After obtaining the field equations for a flat FRW backgr
Externí odkaz:
http://arxiv.org/abs/1904.08068
Publikováno v:
Phys. Rev. D 100, 023529 (2019)
A warm-intermediate inflationary universe model is studied in the presence of the Galileon coupling $G(\phi,X)=g(\phi)X$. General conditions required for successful inflation are deduced and discussed from the background and cosmological perturbation
Externí odkaz:
http://arxiv.org/abs/1811.05510