Investigating cosmology models through usual and dual kaniadakis entropies: theoretical and observational tensions and features
Abstract We investigate cosmological models inspired by usual and dual Kaniadakis entropy, constraining them using observational data from CMB, BAO, supernovae, and $$H_0$$ H 0 measurements. Our analysis shows that while the base Kaniadakis models fail to resolve cosmic tensions, their extensions, i...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-05-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-025-14307-6 |
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| author | H. R. M. Zarandi Y. Toda E. Ebrahimi |
| author_facet | H. R. M. Zarandi Y. Toda E. Ebrahimi |
| author_sort | H. R. M. Zarandi |
| collection | DOAJ |
| description | Abstract We investigate cosmological models inspired by usual and dual Kaniadakis entropy, constraining them using observational data from CMB, BAO, supernovae, and $$H_0$$ H 0 measurements. Our analysis shows that while the base Kaniadakis models fail to resolve cosmic tensions, their extensions, incorporating dynamic dark energy or non-flat geometry, exhibit improved consistency. Negative values for the Kaniadakis parameter $$\beta $$ β are observationally preferred, favoring the dual entropy formulation. The models are further analyzed for stability, cosmic age predictions, and large-scale structure formation, demonstrating their viability as alternatives to standard cosmology. |
| format | Article |
| id | doaj-art-b18f58576c4d4065ba2361276e6b28dc |
| institution | DOAJ |
| issn | 1434-6052 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-b18f58576c4d4065ba2361276e6b28dc2025-08-20T03:22:13ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-05-0185512010.1140/epjc/s10052-025-14307-6Investigating cosmology models through usual and dual kaniadakis entropies: theoretical and observational tensions and featuresH. R. M. Zarandi0Y. Toda1E. Ebrahimi2College of Physics, Shahid Bahonar UniversityDepartment of Physics, Hokkaido UniversityDepartment of Physics, College of Science, Shiraz UniversityAbstract We investigate cosmological models inspired by usual and dual Kaniadakis entropy, constraining them using observational data from CMB, BAO, supernovae, and $$H_0$$ H 0 measurements. Our analysis shows that while the base Kaniadakis models fail to resolve cosmic tensions, their extensions, incorporating dynamic dark energy or non-flat geometry, exhibit improved consistency. Negative values for the Kaniadakis parameter $$\beta $$ β are observationally preferred, favoring the dual entropy formulation. The models are further analyzed for stability, cosmic age predictions, and large-scale structure formation, demonstrating their viability as alternatives to standard cosmology.https://doi.org/10.1140/epjc/s10052-025-14307-6 |
| spellingShingle | H. R. M. Zarandi Y. Toda E. Ebrahimi Investigating cosmology models through usual and dual kaniadakis entropies: theoretical and observational tensions and features European Physical Journal C: Particles and Fields |
| title | Investigating cosmology models through usual and dual kaniadakis entropies: theoretical and observational tensions and features |
| title_full | Investigating cosmology models through usual and dual kaniadakis entropies: theoretical and observational tensions and features |
| title_fullStr | Investigating cosmology models through usual and dual kaniadakis entropies: theoretical and observational tensions and features |
| title_full_unstemmed | Investigating cosmology models through usual and dual kaniadakis entropies: theoretical and observational tensions and features |
| title_short | Investigating cosmology models through usual and dual kaniadakis entropies: theoretical and observational tensions and features |
| title_sort | investigating cosmology models through usual and dual kaniadakis entropies theoretical and observational tensions and features |
| url | https://doi.org/10.1140/epjc/s10052-025-14307-6 |
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