Braneworlds in bumblebee gravity
Fuente:
arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866908096716079104 |
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| author | Marques, M. A. Menezes, R. Petrov, A. Yu. Porfírio, P. J. |
| author_facet | Marques, M. A. Menezes, R. Petrov, A. Yu. Porfírio, P. J. |
| contents | We investigate thick-brane solutions within the five-dimensional bumblebee gravity in the presence of a real scalar field. Specifically, we implement the Lorentz symmetry breaking scenario within this context and obtain brane-like structures. Since the contribution of the bumblebee field is expected to be weak, we solve the field equations in the small-parameter regime. In this situation, we develop a first-order framework to describe the brane. The results show that the function which drives the bumblebee field may engender a lumplike structure whose shape depends on the parameters. On one hand, the effect of the non-minimal coupling, controlled by $ξ$, between the bumblebee field and gravity shifts the field from the vacuum expectation value. On the other hand, the aether parameter, $β$, is responsible for modifying the solution inside the brane. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2306_13069 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Braneworlds in bumblebee gravity Marques, M. A. Menezes, R. Petrov, A. Yu. Porfírio, P. J. High Energy Physics - Theory General Relativity and Quantum Cosmology We investigate thick-brane solutions within the five-dimensional bumblebee gravity in the presence of a real scalar field. Specifically, we implement the Lorentz symmetry breaking scenario within this context and obtain brane-like structures. Since the contribution of the bumblebee field is expected to be weak, we solve the field equations in the small-parameter regime. In this situation, we develop a first-order framework to describe the brane. The results show that the function which drives the bumblebee field may engender a lumplike structure whose shape depends on the parameters. On one hand, the effect of the non-minimal coupling, controlled by $ξ$, between the bumblebee field and gravity shifts the field from the vacuum expectation value. On the other hand, the aether parameter, $β$, is responsible for modifying the solution inside the brane. |
| title | Braneworlds in bumblebee gravity |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2306.13069 |