Cosmic Dynamics in Einstein-Cartan Theory: Analysing Hubble Tension through Curvature and Torsion field

[2410.19399] Cosmic Dynamics in Einstein-Cartan Theory: Analysing Hubble Tension through Curvature and Torsion field Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search Astrophysics > Cosmology and Nongalactic Astrophysics arXiv:2410.19399 (astro-ph) [Submitted on 25 Oct 2024 ( v1 ), last revised 9 Apr 2026 (this version, v2)] Title: Cosmic Dynamics in Einstein-Cartan Theory: Analysing Hubble Tension through Curvature and Torsion field Authors: Yun-Dong Wu , Wei Hong , Tong-Jie Zhang View a PDF of the paper titled Cosmic Dynamics in Einstein-Cartan Theory: Analysing Hubble Tension through Curvature and Torsion field, by Yun-Dong Wu and 1 other authors View PDF HTML (experimental) Abstract: The Hubble tension refers to the significant discrepancy in the Hubble constant $H_{0}$ obtained from two different measurement methods in cosmology. One method derives data from the Cosmic Microwave Background (CMB) observations by the Planck satellite, yielding a value of $67.4\pm{0.5} \ \mathrm{km\ s^{-1}} \mathrm{Mpc^{-1}} $, while the other method relies on direct measurements of Type Ia supernovae, producing a value $73.04\pm{1.04} \ \mathrm{km\ s^{-1}} \mathrm{Mpc^{-1}} $. This issue has persisted for several years. To theoretically explore potential solutions to this problem, this paper examines a model within the framework of Einstein-Cartan (EC) theory, where torsion is introduced with spin as the corresponding entity, allowing for the assumption $H = -\alpha \phi$. By employing the Markov Chain Monte Carlo (MCMC) algorithm and utilizing Cosmic Chronometers (CC) data, we impose parameter constraints on various parameters in the Friedmann equations, particularly focusing on the curvature density parameter $\Omega_k$, to assess whether the model remains stable under this assumption and whether the estimated parameters align more closely with either of the observational results. In conclusion, we find that the parameter constraints in the model incorporating torsion ($ H_0 = 67.6^{+2.1}_{-2.7} \ \mathrm{km\ s^{-1}\ Mpc^{-1}}$, obtained under the Big Bang Nucleosynthesis (BBN) constraint with $\Omega_{k}=0$; $ H_0 = 66.2^{+4.4}_{-2.9} \ \mathrm{km\ s^{-1}\ Mpc^{-1}}$, obtained under same constraint but set $\Omega_{k}$ as a free variable; $ H_0 = 68.8^{+2.9}_{-4.2} \ \mathrm{km\ s^{-1}\ Mpc^{-1}}$, obtained under the Planck constraint) are more consistent with the value derived from CMB data, favoring the lower $H_0$ value. Comments: 15 pages,5 figures, 2 tables, published in RAA on April 2, 2026 Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO) Cite as: arXiv:2410.19399 [astro-ph.CO] (or arXiv:2410.19399v2 [astro-ph.CO] for this version) https://doi.org/10.48550/arXiv.2410.19399 Focus to learn more arXiv-issued DOI via DataCite Journal reference: Research in Astronomy and Astrophysics, Volume 26, Issue 6, id.065005, 10 pp.(2026) Related DOI : https://doi.org/10.1088/1674-4527/ae4bb3 Focus to learn more DOI(s) linking to related resources Submission history From: Yundong Wu [ view email ] [v1] Fri, 25 Oct 2024 09:01:21 UTC (606 KB) [v2] Thu, 9 Apr 2026 04:14:20 UTC (622 KB) Full-text links: Access Paper: View a PDF of the paper titled Cosmic Dynamics in Einstein-Cartan Theory: Analysing Hubble Tension through Curvature and Torsion field, by Yun-Dong Wu and 1 other authors View PDF HTML (experimental) TeX Source view license Current browse context: astro-ph.CO < prev | next > new | recent | 2024-10 Change to browse by: astro-ph References & Citations INSPIRE HEP NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... 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