The Ups and Downs of Early Dark Energy solutions to the Hubble tension: A review of models, hints and constraints circa 2023

V Poulin, TL Smith, T Karwal - Physics of the Dark Universe, 2023 - Elsevier
We review the current status of Early Dark Energy (EDE) models proposed to resolve the
“Hubble tension”, the discrepancy between “direct” measurements of the current expansion …

The H0 Olympics: A fair ranking of proposed models

N Schöneberg, GF Abellán, AP Sánchez, SJ Witte… - Physics Reports, 2022 - Elsevier
Despite the remarkable success of the Λ Cold Dark Matter (Λ CDM) cosmological model, a
growing discrepancy has emerged (currently measured at the level of∼ 4− 6 σ) between the …

A comprehensive measurement of the local value of the Hubble constant with 1 km s− 1 Mpc− 1 uncertainty from the Hubble Space Telescope and the SH0ES team

AG Riess, W Yuan, LM Macri, D Scolnic… - The Astrophysical …, 2022 - iopscience.iop.org
We report observations from the Hubble Space Telescope (HST) of Cepheid variables in the
host galaxies of 42 Type Ia supernovae (SNe Ia) used to calibrate the Hubble constant (H 0) …

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 …

H0LiCOW – XIII. A 2.4 per cent measurement of H0 from lensed quasars: 5.3σ tension between early- and late-Universe probes

KC Wong, SH Suyu, GCF Chen… - Monthly Notices of …, 2020 - academic.oup.com
We present a measurement of the Hubble constant (H 0) and other cosmological parameters
from a joint analysis of six gravitationally lensed quasars with measured time delays. All …

The Carnegie-Chicago Hubble program. VIII. An independent determination of the Hubble constant based on the tip of the red giant branch

WL Freedman, BF Madore, D Hatt, TJ Hoyt… - The Astrophysical …, 2019 - iopscience.iop.org
We present a new and independent determination of the local value of the Hubble constant
based on a calibration of the tip of the red giant branch (TRGB) applied to Type Ia …

A buyer's guide to the Hubble constant

P Shah, P Lemos, O Lahav - The Astronomy and Astrophysics Review, 2021 - Springer
Since the expansion of the universe was first established by Edwin Hubble and Georges
Lemaître about a century ago, the Hubble constant H_0 H 0 which measures its rate has …

New physics in light of the tension: An alternative view

S Vagnozzi - Physical Review D, 2020 - APS
The strong discrepancy between local and early-time (inverse distance ladder) estimates of
the Hubble constant H 0 could be pointing towards new physics beyond the concordance Λ …

Nonminimal dark sector physics and cosmological tensions

E Di Valentino, A Melchiorri, O Mena, S Vagnozzi - Physical Review D, 2020 - APS
We explore whether nonstandard dark sector physics might be required to solve the existing
cosmological tensions. The properties we consider in combination are (a) an interaction …

Oscillating scalar fields and the Hubble tension: a resolution with novel signatures

TL Smith, V Poulin, MA Amin - Physical Review D, 2020 - APS
We present a detailed investigation of a subdominant oscillating scalar field [“early dark
energy”(EDE)] in the context of resolving the Hubble tension. Consistent with earlier work …