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| Main Author: | |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2409.08548 |
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| _version_ | 1866915176155971584 |
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| author | Bisabr, Yousef |
| author_facet | Bisabr, Yousef |
| contents | We show that a generalisation of Brand-Dicke (BD) theory can provide a theoretical basis for dark energy at early times. This generalisation is based on introducing a potential for the BD scalar and allowing of the latter to interact with radiation in the radiation-dominated rea. We argue that the model we take up provides a strong theoretical basis for early dark energy (EDE) so that the scalar field can mimic a cosmological constant and quintessence behaviors under slow-roll and non-slow-roll conditions, respectively. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_08548 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Can Brans-Dicke Scalar Field Mimic Early Dark Energy? Bisabr, Yousef High Energy Physics - Theory We show that a generalisation of Brand-Dicke (BD) theory can provide a theoretical basis for dark energy at early times. This generalisation is based on introducing a potential for the BD scalar and allowing of the latter to interact with radiation in the radiation-dominated rea. We argue that the model we take up provides a strong theoretical basis for early dark energy (EDE) so that the scalar field can mimic a cosmological constant and quintessence behaviors under slow-roll and non-slow-roll conditions, respectively. |
| title | Can Brans-Dicke Scalar Field Mimic Early Dark Energy? |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2409.08548 |