Magnetic Bianchi-I cosmology in the Horndeski theory
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866914886011846656 |
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| author | Muharlyamov, Ruslan K. Pankratyeva, Tatiana N. Bashir, Shehabaldeen O. A. |
| author_facet | Muharlyamov, Ruslan K. Pankratyeva, Tatiana N. Bashir, Shehabaldeen O. A. |
| contents | We study the evolution of Bianchi-I space-times within the framework of the Horndeski theory with $G_5=\text{const}/X$. The space-times are filled a global unidirectional electromagnetic field interacting with a scalar field. We consider the minimal interaction and the non-minimal interaction by the law $f^2(ϕ)F_{μν}F^{μν}$. The Horndeski theory allows anisotropy to grow over time, so the question arises of regulating the anisotropic level in this theory. Using the designer method, we build models in which the anisotropic level tends to a small value as the Universe expands. One of the results is a model with a anisotropic bounce. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2403_15158 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Magnetic Bianchi-I cosmology in the Horndeski theory Muharlyamov, Ruslan K. Pankratyeva, Tatiana N. Bashir, Shehabaldeen O. A. General Relativity and Quantum Cosmology We study the evolution of Bianchi-I space-times within the framework of the Horndeski theory with $G_5=\text{const}/X$. The space-times are filled a global unidirectional electromagnetic field interacting with a scalar field. We consider the minimal interaction and the non-minimal interaction by the law $f^2(ϕ)F_{μν}F^{μν}$. The Horndeski theory allows anisotropy to grow over time, so the question arises of regulating the anisotropic level in this theory. Using the designer method, we build models in which the anisotropic level tends to a small value as the Universe expands. One of the results is a model with a anisotropic bounce. |
| title | Magnetic Bianchi-I cosmology in the Horndeski theory |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2403.15158 |