A space dependent Cosmological Constant
Fuente:
arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2023
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| _version_ | 1866910365343809536 |
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| author | Comelli, Denis |
| author_facet | Comelli, Denis |
| contents | In a specific adiabatic perfect fluid, intrinsic entropy density perturbations are the source of a {\it space dependent} cosmological constant responsible for local void inhomogeneity. Assuming an anisotropic Locally Rotationally Symmetric space time, using the 1+1+2 covariant approach and a Lemaitre space time metric, we study the cosmological implication of such a scenario giving a proper solution to the Hubble constant tension and providing, locally, also an effective equation of state with $w\leq - 1$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_15866 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | A space dependent Cosmological Constant Comelli, Denis General Relativity and Quantum Cosmology In a specific adiabatic perfect fluid, intrinsic entropy density perturbations are the source of a {\it space dependent} cosmological constant responsible for local void inhomogeneity. Assuming an anisotropic Locally Rotationally Symmetric space time, using the 1+1+2 covariant approach and a Lemaitre space time metric, we study the cosmological implication of such a scenario giving a proper solution to the Hubble constant tension and providing, locally, also an effective equation of state with $w\leq - 1$. |
| title | A space dependent Cosmological Constant |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2311.15866 |