Post-Newtonian limit of generalized scalar-teleparallel theories of gravity
Fuente:
arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2023
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| _version_ | 1866913787614855168 |
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| author | Hohmann, Manuel Ualikhanova, Ulbossyn |
| author_facet | Hohmann, Manuel Ualikhanova, Ulbossyn |
| contents | We propose a general class of scalar-teleparallel theories, which are based on a scalar field which is coupled to a flat connection with torsion and nonmetricity, and study its post-Newtonian limit using the parametrized post-Newtonian formalism. We find that among this class there are theories whose post-Newtonian limit fully agrees with general relativity; for others only the parameters $β$ and $γ$ deviate from their general relativity values $β= γ= 1$, while all other parameters remain the same, thus preserving total momentum conservation, local Lorentz invariance and local position invariance; finally, we also find theories whose post-Newtonian limit is pathological. Our main result is a full classification of the proposed theories into these different cases. We apply our findings to a number of simpler classes of theories and show that for these a subset of the aforementioned cases can be found. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_13352 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Post-Newtonian limit of generalized scalar-teleparallel theories of gravity Hohmann, Manuel Ualikhanova, Ulbossyn General Relativity and Quantum Cosmology High Energy Physics - Theory We propose a general class of scalar-teleparallel theories, which are based on a scalar field which is coupled to a flat connection with torsion and nonmetricity, and study its post-Newtonian limit using the parametrized post-Newtonian formalism. We find that among this class there are theories whose post-Newtonian limit fully agrees with general relativity; for others only the parameters $β$ and $γ$ deviate from their general relativity values $β= γ= 1$, while all other parameters remain the same, thus preserving total momentum conservation, local Lorentz invariance and local position invariance; finally, we also find theories whose post-Newtonian limit is pathological. Our main result is a full classification of the proposed theories into these different cases. We apply our findings to a number of simpler classes of theories and show that for these a subset of the aforementioned cases can be found. |
| title | Post-Newtonian limit of generalized scalar-teleparallel theories of gravity |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2312.13352 |