Testing influence of Hubble tension on the early Universe
Abstract The Hubble tension has profoundly shaped modern cosmological research. This study explores its impact on the early-universe physics in the modified emergent dark energy (MEDE) and $$\Lambda $$ Λ CDM model using Planck PR4, BK18, DESI2024/2025, and supernova samples (Pan+, Union3). First, Hu...
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| Language: | English |
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SpringerOpen
2025-07-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-025-14491-5 |
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| author | Ming-Jian Zhang Maoyou Yang Junmei Wang |
| author_facet | Ming-Jian Zhang Maoyou Yang Junmei Wang |
| author_sort | Ming-Jian Zhang |
| collection | DOAJ |
| description | Abstract The Hubble tension has profoundly shaped modern cosmological research. This study explores its impact on the early-universe physics in the modified emergent dark energy (MEDE) and $$\Lambda $$ Λ CDM model using Planck PR4, BK18, DESI2024/2025, and supernova samples (Pan+, Union3). First, Hubble constant negligibly affects the tensor-to-scalar ratio ( $$r < 0.031$$ r < 0.031 at 95%C.L.). Inclusion of DESI2025 achieves a 46% uncertainty reduction in key parameters. For CMB power spectra, DESI systematically amplifies TT/BB spectral discrepancies. Second, electron ionization fractions $$X_e(z)$$ X e ( z ) display pronounced deviations from the $$\Lambda $$ Λ CDM model at $$z=9.17$$ z = 9.17 , suggesting a connection between Hubble tension and reionization history. This finding resonates with JWST measurements on high-redshift galaxy evolution. Future observations, such as 21-cm surveys, are highly anticipated to resolve these tensions by probing early-universe evolution and dark energy interactions. |
| format | Article |
| id | doaj-art-1a9f0f0b98b04c0fb251b917e952b5e0 |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-1a9f0f0b98b04c0fb251b917e952b5e02025-08-20T03:46:29ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-07-0185711010.1140/epjc/s10052-025-14491-5Testing influence of Hubble tension on the early UniverseMing-Jian Zhang0Maoyou Yang1Junmei Wang2International School for Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences)International School for Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences)International School for Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences)Abstract The Hubble tension has profoundly shaped modern cosmological research. This study explores its impact on the early-universe physics in the modified emergent dark energy (MEDE) and $$\Lambda $$ Λ CDM model using Planck PR4, BK18, DESI2024/2025, and supernova samples (Pan+, Union3). First, Hubble constant negligibly affects the tensor-to-scalar ratio ( $$r < 0.031$$ r < 0.031 at 95%C.L.). Inclusion of DESI2025 achieves a 46% uncertainty reduction in key parameters. For CMB power spectra, DESI systematically amplifies TT/BB spectral discrepancies. Second, electron ionization fractions $$X_e(z)$$ X e ( z ) display pronounced deviations from the $$\Lambda $$ Λ CDM model at $$z=9.17$$ z = 9.17 , suggesting a connection between Hubble tension and reionization history. This finding resonates with JWST measurements on high-redshift galaxy evolution. Future observations, such as 21-cm surveys, are highly anticipated to resolve these tensions by probing early-universe evolution and dark energy interactions.https://doi.org/10.1140/epjc/s10052-025-14491-5 |
| spellingShingle | Ming-Jian Zhang Maoyou Yang Junmei Wang Testing influence of Hubble tension on the early Universe European Physical Journal C: Particles and Fields |
| title | Testing influence of Hubble tension on the early Universe |
| title_full | Testing influence of Hubble tension on the early Universe |
| title_fullStr | Testing influence of Hubble tension on the early Universe |
| title_full_unstemmed | Testing influence of Hubble tension on the early Universe |
| title_short | Testing influence of Hubble tension on the early Universe |
| title_sort | testing influence of hubble tension on the early universe |
| url | https://doi.org/10.1140/epjc/s10052-025-14491-5 |
| work_keys_str_mv | AT mingjianzhang testinginfluenceofhubbletensionontheearlyuniverse AT maoyouyang testinginfluenceofhubbletensionontheearlyuniverse AT junmeiwang testinginfluenceofhubbletensionontheearlyuniverse |