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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2510.25928 |
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| _version_ | 1866915847095713792 |
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| author | Cruz, Miguel Housset, Joaquin Lepe, Samuel Saavedra, Joel Tello-Ortiz, Francisco |
| author_facet | Cruz, Miguel Housset, Joaquin Lepe, Samuel Saavedra, Joel Tello-Ortiz, Francisco |
| contents | Focusing on the description of cosmic evolution at late times, this study examines a generalized holographic dark energy (HDE) framework constructed via a polynomial expansion in the Hubble parameter, which includes contributions proportional to $H^{2}$, $H^{4}$, and $H^{6}$, introduced through a variable parameter within the standard holographic formula. The analysis is carried out in the context of a spatially flat Friedmann-Lemaître-Robertson-Walker (FLRW) Universe, consisting of non-interacting matter together with the HDE fluid. We obtain the full set of Friedmann equations to investigate cosmic evolution and then analyze the system to determine whether thermodynamic $P - v$ type phase transitions can occur. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_25928 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | First-order phase transitions and cosmic evolution: thermodynamic approach to generalized holographic dark energy Cruz, Miguel Housset, Joaquin Lepe, Samuel Saavedra, Joel Tello-Ortiz, Francisco General Relativity and Quantum Cosmology Focusing on the description of cosmic evolution at late times, this study examines a generalized holographic dark energy (HDE) framework constructed via a polynomial expansion in the Hubble parameter, which includes contributions proportional to $H^{2}$, $H^{4}$, and $H^{6}$, introduced through a variable parameter within the standard holographic formula. The analysis is carried out in the context of a spatially flat Friedmann-Lemaître-Robertson-Walker (FLRW) Universe, consisting of non-interacting matter together with the HDE fluid. We obtain the full set of Friedmann equations to investigate cosmic evolution and then analyze the system to determine whether thermodynamic $P - v$ type phase transitions can occur. |
| title | First-order phase transitions and cosmic evolution: thermodynamic approach to generalized holographic dark energy |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2510.25928 |