Hubble tension in a nonminimally coupled curvature-matter gravity model

Abstract

The presently open problem of the Hubble tension is shown to be removed in the context of a modified theory of gravity with a non-minimal coupling between curvature and matter. By evolving the cosmological parameters that match the cosmic microwave background data until their values from direct late-time measurements, we obtain an agreement between different experimental methods without disrupting their individual validity. These modified gravity models are shown to provide adequate fits for other observational data from recent astrophysical surveys and to reproduce the late-time accelerated expansion of the Universe without the inclusion of a cosmological constant. This compatibility with observations presents further evidence of the versatility of these models in mimicking diverse cosmological phenomena in a unified manner.

12 pages, 6 figures, Final version with corrections from peer review

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• Is cosmological data suggesting a nonminimal coupling between matter and gravity?
• Gravitational wave polarizations in nonminimally coupled gravity
• Constraints on the Hubble and matter density parameters with and without modelling the CMB anisotropies
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• Spin effects on particle creation and evaporation in $f(R,T)$ gravity
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• A Modified Gravitational Theory of the Matter Sector of the Type $\varphi (R,T){\mathcal{L}}_m$
• Cosmological and lunar laser ranging constraints on evolving dark energy in a nonminimally coupled curvature-matter gravity model