-
1
-
2
-
3
Bianchi I Cosmology and Scalar Vector Tensor Brans Dicke Gravity
Published 2021-07-01Subjects: “…cosmology…”
Get full text
Article -
4
Quantum-Ordering Ambiguities in Weak Chern—Simons 4D Gravity and Metastability of the Condensate-Induced Inflation
Published 2025-01-01Subjects: “…cosmology…”
Get full text
Article -
5
-
6
Grand unification at the cosmological collider with chemical potential
Published 2025-01-01“…We show that, within high-scale inflation, chemical potential enhancement can lead to observably strong signals for trinification partners in future cosmological surveys.…”
Get full text
Article -
7
Warm Inflation with Nonminimal Derivative Coupling
Published 2014-01-01“…We present a detailed calculation of the cosmological perturbations in this setup. We use the recent observational data from the joint data set of WMAP9 + BAO + H0 and also the Planck satellite data to constrain our model parameters for natural and chaotic inflation potentials. …”
Get full text
Article -
8
Quantum Cosmology of Quadratic f(R) Theories with a FRW Metric
Published 2017-01-01“…We study the quantum cosmology of a quadratic fR theory with a FRW metric, via one of its equivalent Horndeski type actions, where the dynamic of the scalar field is induced. …”
Get full text
Article -
9
Mimetic Gravity: A Review of Recent Developments and Applications to Cosmology and Astrophysics
Published 2017-01-01“…Mimetic gravity is a Weyl-symmetric extension of General Relativity, related to the latter by a singular disformal transformation, wherein the appearance of a dust-like perfect fluid can mimic cold dark matter at a cosmological level. Within this framework, it is possible to provide a unified geometrical explanation for dark matter, the late-time acceleration, and inflation, making it a very attractive theory. …”
Get full text
Article -
10
Non-Gaussianity from Particle Production during Inflation
Published 2010-01-01“…In this review we show that interactions between the produced particles and the inflaton condensate can lead to a qualitatively new mechanism for generating cosmological fluctuations from inflation. We illustrate this effect using a simple prototype model g2(ϕ−ϕ0)2χ2 for the interaction between the inflaton, ϕ, and iso-inflaton, χ. …”
Get full text
Article -
11
Searches for other vacua. Part II. A new Higgstory at the cosmological collider
Published 2020-01-01Get full text
Article -
12
Warm non-minimally coupled Peccei–Quinn inflation and de Sitter Swampland conjecture
Published 2025-03-01“…Our model incorporates a PQ scalar field that is non-minimally coupled to gravity, facilitating inflation through a dissipative process that sustains a thermal bath, thereby distinguishing it from conventional cold inflation. …”
Get full text
Article -
13
From de Sitter to de Sitter: Decaying Vacuum Models as a Possible Solution to the Main Cosmological Problems
Published 2018-01-01“…Decaying vacuum cosmological models evolving smoothly between two extreme (very early and late time) de Sitter phases are able to solve or at least to alleviate some cosmological puzzles; among them we have (i) the singularity, (ii) horizon, (iii) graceful-exit from inflation, and (iv) the baryogenesis problem. …”
Get full text
Article -
14
Primordial black holes from effective field theory of stochastic single field inflation at NNNLO
Published 2025-01-01Get full text
Article -
15
-
16
Radiative corrections to the R and R 2 invariants from torsion fluctuations on maximally symmetric spaces
Published 2024-12-01Get full text
Article -
17
Evaluation of the Single-component Thermal Dust Emission Model in Cosmic Microwave Background Experiments
Published 2025-01-01Get full text
Article -
18
Aspects of Moduli Stabilization in Type IIB String Theory
Published 2016-01-01“…In particular, the associated inflation models such as racetrack inflation and Kähler inflation are analyzed. …”
Get full text
Article -
19
More on the Non-Gaussianity of Perturbations in a Nonminimal Inflationary Model
Published 2018-01-01“…We study nonlinear cosmological perturbations and their possible non-Gaussian character in an extended nonminimal inflation where gravity is coupled nonminimally to both the scalar field and its derivatives. …”
Get full text
Article -
20
Noether Gauge Symmetry of Dirac Field in (2 + 1)-Dimensional Gravity
Published 2015-01-01“…In this picture, it is shown that, for the nonminimal coupling case, the cosmological solutions indicate both an early-time inflation and late-time acceleration for the universe.…”
Get full text
Article