Can Rotation Solve the Hubble Puzzle?

The discrepancy between low and high redshift Hubble constant $H_0$ measurements is the highest significance tension within the concordance $\Lambda$CDM 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 $\omega_0 \simeq 2\times 10^{-3}$~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.

Publication Details

Journal
ArXiv.org
Published
2025-03-14
Primary Topic
Cosmology and Gravitation Theories
Type
article
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article

Can Rotation Solve the Hubble Puzzle?

ArXiv.org
Cosmology and Gravitation Theories
article

Can Rotation Solve the Hubble Puzzle?

article en

Abstract

The discrepancy between low and high redshift Hubble constant $H_0$ measurements is the highest significance tension within the concordance $\Lambda$CDM 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 $\omega_0 \simeq 2\times 10^{-3}$~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.

ArXiv.org
Openalex Percentile: Top 56%
Cosmology and Gravitation Theories
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Can Rotation Solve the Hubble Puzzle? · ArXiv.org (2025) | TGRS Research Map | TGRS