In the realm of the Hubble tension—a review of solutions

E Di Valentino, O Mena, S Pan, L Visinelli… - … and Quantum Gravity, 2021 - iopscience.iop.org
The simplest ΛCDM model provides a good fit to a large span of cosmological data but
harbors large areas of phenomenology and ignorance. With the improvement of the number …

Finite-time cosmological singularities and the possible fate of the Universe

J de Haro, S Nojiri, SD Odintsov, VK Oikonomou, S Pan - Physics Reports, 2023 - Elsevier
Singularities in any physical theory are either remarkable indicators of the unknown
underlying fundamental theory, or indicate a change in the description of the physical reality …

On the evolution of the Hubble constant with the SNe Ia pantheon sample and baryon acoustic oscillations: a feasibility study for GRB-cosmology in 2030

MG Dainotti, B De Simone, T Schiavone, G Montani… - Galaxies, 2022 - mdpi.com
The difference from 4 to 6 σ in the Hubble constant (H 0) between the values observed with
the local (Cepheids and Supernovae Ia, SNe Ia) and the high-z probes (Cosmic Microwave …

Eppur è piatto? The cosmic chronometers take on spatial curvature and cosmic concordance

S Vagnozzi, A Loeb, M Moresco - The Astrophysical Journal, 2021 - iopscience.iop.org
The question of whether cosmic microwave background (CMB) temperature and polarization
data from Planck favor a spatially closed universe with curvature parameter Ω K< 0 has been …

Testing general relativity in cosmology

M Ishak - Living Reviews in Relativity, 2019 - Springer
We review recent developments and results in testing general relativity (GR) at cosmological
scales. The subject has witnessed rapid growth during the last two decades with the aim of …

Modified cosmology from extended entropy with varying exponent

S Nojiri, SD Odintsov, EN Saridakis - The European Physical Journal C, 2019 - Springer
We present a modified cosmological scenario that arises from the application of non-
extensive thermodynamics with varying exponent. We extract the modified Friedmann …

Implications of an extended dark energy cosmology with massive neutrinos for cosmological tensions

V Poulin, KK Boddy, S Bird, M Kamionkowski - Physical Review D, 2018 - APS
We perform a comprehensive analysis of the most common early-and late-universe
solutions to the H 0, Ly-α, and S 8 discrepancies. When considered on their own, massive …

Scalar induced gravitational waves from primordial black hole Poisson fluctuations in f (R) gravity

T Papanikolaou, C Tzerefos, S Basilakos… - … of Cosmology and …, 2022 - iopscience.iop.org
The gravitational potential of a gas of initially randomly distributed primordial black holes
(PBH) can induce a stochastic gravitational-wave (GW) background through second-order …

[HTML][HTML] Cosmology in f (R, Lm) gravity

LV Jaybhaye, R Solanki, S Mandal, PK Sahoo - Physics Letters B, 2022 - Elsevier
In this letter, we investigate the cosmic expansion scenario of the universe in the framework
of f (R, L m) gravity theory. We consider a non-linear f (R, L m) model, specifically, f (R, L m) …

Structure formation in f (T) gravity and a solution for H0 tension

RC Nunes - Journal of Cosmology and Astroparticle Physics, 2018 - iopscience.iop.org
We investigate the evolution of scalar perturbations in f (T) teleparallel gravity and its effects
on the cosmic microwave background (CMB) anisotropy. The f (T) gravity generalizes the …