Gauge invariant perturbations in teleparallel Horndeski gravity
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arXiv
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| Format: | Preprint |
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2024
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| author | Ahmedov, Bobomurat Caruana, Maria Said, Jackson Levi Dialektopoulos, Konstantinos F. Nosirov, Abdurakhmon Oikonomopoulou, Zinovia Yunusov, Odil |
| author_facet | Ahmedov, Bobomurat Caruana, Maria Said, Jackson Levi Dialektopoulos, Konstantinos F. Nosirov, Abdurakhmon Oikonomopoulou, Zinovia Yunusov, Odil |
| contents | We present in the form of a catalogue of the cosmological perturbations within the Bahamonde- Dialektopoulos-Levi Said (BDLS) theory, which serves as the teleparallel counterpart of Horndeski gravity. To understand structure formation in cosmological models, it is essential to study both the background and perturbative aspects of their cosmology. While extensive analysis of both Horndeski gravity and its teleparallel analog exists in the literature, a quantitative understanding requires a detailed examination of their cosmological perturbations. We review here all the different gauges for the scalar, vector and tensor perturbations of a cosmological background up to second order and we hope this will help people who work with observations, to incorporate it in existing codes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_01349 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Gauge invariant perturbations in teleparallel Horndeski gravity Ahmedov, Bobomurat Caruana, Maria Said, Jackson Levi Dialektopoulos, Konstantinos F. Nosirov, Abdurakhmon Oikonomopoulou, Zinovia Yunusov, Odil General Relativity and Quantum Cosmology We present in the form of a catalogue of the cosmological perturbations within the Bahamonde- Dialektopoulos-Levi Said (BDLS) theory, which serves as the teleparallel counterpart of Horndeski gravity. To understand structure formation in cosmological models, it is essential to study both the background and perturbative aspects of their cosmology. While extensive analysis of both Horndeski gravity and its teleparallel analog exists in the literature, a quantitative understanding requires a detailed examination of their cosmological perturbations. We review here all the different gauges for the scalar, vector and tensor perturbations of a cosmological background up to second order and we hope this will help people who work with observations, to incorporate it in existing codes. |
| title | Gauge invariant perturbations in teleparallel Horndeski gravity |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2412.01349 |