Dark energy from α-attractors: phenomenology and observational constraints
C García-García, EV Linder… - … of Cosmology and …, 2018 - iopscience.iop.org
The possibility of linking inflation and late cosmic accelerated expansion using the α-
attractor models has received increasing attention due to their physical motivation. In the …
attractor models has received increasing attention due to their physical motivation. In the …
Constraints on quintessence scalar field models using cosmological observations
We consider a variety of quintessence scalar field models in a homogeneous and isotropic
geometry of the Universe with zero spatial curvature aiming to provide stringent constraints …
geometry of the Universe with zero spatial curvature aiming to provide stringent constraints …
Bayesian evidence for α-attractor dark energy models
Dark energy models with tracker properties have gained attention due to the large range of
initial conditions leading to the current value of the dark energy density parameter. A well …
initial conditions leading to the current value of the dark energy density parameter. A well …
Gauss–Bonnet Inflation after Planck2018
We study the primordial perturbations and reheating process in the models where the Gauss–
Bonnet (GB) term is nonminimally coupled to the canonical and noncanonical (DBI and …
Bonnet (GB) term is nonminimally coupled to the canonical and noncanonical (DBI and …
-attractor potentials in loop quantum cosmology
We perform in this work an analysis of the background dynamics for α-attractor models in the
context of loop quantum cosmology. Particular attention is given to the determination of the …
context of loop quantum cosmology. Particular attention is given to the determination of the …
Cosmological Einstein–Maxwell model with -essence
In this paper, we study the model of the late universe with the homogeneous, isotropic and
flat Friedmann–Robertson–Walker metric, where the source of the gravitational field is …
flat Friedmann–Robertson–Walker metric, where the source of the gravitational field is …
Preinflationary dynamics of an attractor in loop quantum cosmology
We systematically study the preinflationary dynamics of the spatially flat Friedmann-Lemaitre-
Robertson-Walker universe filled with a single scalar field that has the generalized α …
Robertson-Walker universe filled with a single scalar field that has the generalized α …
Observational Viability of an Inflation Model with E-model Nonminimal Derivative Coupling
By starting with a two-fields model in which the fields and their derivatives are nonminimally
coupled to gravity, and then by using a conformal gauge, we obtain a model in which the …
coupled to gravity, and then by using a conformal gauge, we obtain a model in which the …
Dark energy with oscillatory tracking potential: observational constraints and perturbative effects
A Joseph, R Saha - Monthly Notices of the Royal Astronomical …, 2022 - academic.oup.com
The cosmological models exhibiting tracker properties have great significance in the context
of dark energy as they can reach the present value of dark energy density from a wide range …
of dark energy as they can reach the present value of dark energy density from a wide range …
α-attractor dark energy in view of next-generation cosmological surveys
C García-García, P Ruíz-Lapuente… - … of Cosmology and …, 2019 - iopscience.iop.org
The α-attractor inflationary models are nowadays favored by CMB Planck observations.
Their similarity with canonical quintessence models motivates the exploration of a common …
Their similarity with canonical quintessence models motivates the exploration of a common …