Pith. sign in

REVIEW 9 cited by

Implication of the Hubble tension for the primordial Universe in light of recent cosmological data

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2103.09729 v2 pith:ZVW4QZHK submitted 2021-03-17 astro-ph.CO gr-qchep-th

Implication of the Hubble tension for the primordial Universe in light of recent cosmological data

classification astro-ph.CO gr-qchep-th
keywords deltahubbletensioncosmologicalprimordialshiftsacousticanalysis
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

In prerecombination resolutions of the Hubble tension, such as early dark energy, new physics before recombination shifts the values of relevant cosmological parameters so that the models can fit with cosmic microwave background and baryon acoustic oscillations observations as well as $\Lambda$CDM does. In this paper, we clarify how the parameter shifts are related with $\delta H_0$, particularly we find the shift of primordial scalar spectral index scales as ${\delta n_s}\simeq 0.4{\delta H_0\over H_0}$ by performing the Monte Carlo Markov chain analysis with the Planck2018+BAO+Pantheon+R19+Keck Array/BICEP dataset. A novel point of our result is that if the current $H_0$ measured locally is correct, complete resolution of the Hubble tension seems to be pointing to a scale invariant Harrison-Zeldovich spectrum, i.e. $n_s= 1$ for $H_0\sim 73$km/s/Mpc.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 9 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Unifying Early and Late Dark Energy: Dynamical Requirements and Obstructions

    astro-ph.CO 2026-05 unverdicted novelty 7.0

    Any unified early and late dark energy scenario with a single tracking scalar field requires a potential with three distinct slopes arranged in a steep-steeper-shallow hierarchy.

  2. Harrison-Zeldovich attractor: From Planck to ACT results

    astro-ph.CO 2025-10 conditional novelty 6.0

    Nonminimal derivative coupling realizes the Harrison-Zeldovich attractor for monomial, hilltop, and α-attractor E-models, pulling them to the scale-invariant spectrum suggested by ACT data.

  3. Running into tension: primordial black holes from ultra-slow-roll inflation, spectral running, and the Hubble tension

    astro-ph.CO 2026-06 unverdicted novelty 5.0

    EDE models increase inferred α_s from CMB data, strengthening tension with USR PBH models that predict negative running.

  4. Cosmological intercept tension

    astro-ph.CO 2026-04 unverdicted novelty 5.0

    Tensions in the supernova intercept a_B at z~0.01 in PantheonPlus and z~0.1 in DES-Y5 point to data systematics or inter-survey inconsistencies rather than new physics, aligning H0 measurements and reducing support fo...

  5. Imprint of swampland-inspired coupled early dark energy

    astro-ph.CO 2026-07 conditional novelty 4.0

    A swampland-inspired DM-EDE coupling is tested against DESI DR2 BAO data, showing the EDE potential construction affects late-time dark energy constraints.

  6. Intertwined Constraints in Extended Cosmologies: Dark Energy, Curvature, Neutrinos, and Inflation

    astro-ph.CO 2026-07 unverdicted novelty 4.0

    Dynamical dark energy remains preferred across extended models while curvature, neutrino mass and inflation parameters show strong model dependence, with no resolution of the H0 tension.

  7. Resolving the Hubble Tension in the Early Dark Energy Framework with JWST and DESI Data

    astro-ph.CO 2026-06 unverdicted novelty 4.0

    Axion EDE model fitted to Planck/ACT/SPT CMB, DESI BAO, and JWST UV luminosity function data yields H0 = 71.58 ± 1.05 km s^{-1} Mpc^{-1}, reduces H0 tension to 1.0 sigma, and improves Δχ^{2}_tot = -18.26 over Λ CDM.

  8. The Hubble tension: A decade review

    astro-ph.CO 2026-06 conditional novelty 3.0

    Pure early or late fixes to the Hubble tension are tightly constrained; remaining options are combined early-late interacting dark energy or new physics at the local-to-homogeneous transition.

  9. The Hubble tension: A decade review

    astro-ph.CO 2026-06 unverdicted novelty 2.0

    A review summarizing the Hubble tension as a persistent crisis and discussing resolutions via interacting dark energy models that combine early-time and late-time modifications.