English

Can Rotation Solve the Hubble Puzzle?

General Relativity and Quantum Cosmology 2025-03-19 v1

Abstract

The discrepancy between low and high redshift Hubble constant H0H_0 measurements is the highest significance tension within the concordance Λ\LambdaCDM paradigm. If not due to unknown systematics, the Hubble puzzle suggests a lack of understanding of the universe's expansion history despite the otherwise spectacular success of the theory. We show that a G\"odel inspired slowly rotating dark-fluid variant of the concordance model resolves this tension with an angular velocity today ω02×103\omega_0 \simeq 2\times 10^{-3}~Gyr\textsuperscript{-1}. Curiously, this is close to the maximal rotation, avoiding closed time-like loops with a tangential velocity less than the speed of light at the horizon.

Keywords

Cite

@article{arxiv.2503.13525,
  title  = {Can Rotation Solve the Hubble Puzzle?},
  author = {Balázs Endre Szigeti and István Szapudi and Imre Ferenc Barna and Gergely Gábor Barnaföldi},
  journal= {arXiv preprint arXiv:2503.13525},
  year   = {2025}
}

Comments

4 pages, 3 figures, accepted for publication in MNRAS

R2 v1 2026-06-28T22:24:08.354Z