Spin connection and cosmological perturbations in scalar-torsion gravity
| Autor: | Alexey V. Toporensky, Petr V. Tretyakov |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | International Journal of Geometric Methods in Modern Physics. 19 |
| ISSN: | 1793-6977 0219-8878 |
| DOI: | 10.1142/s021988782250147x |
| Popis: | In this paper we generalize our previous results on spin connection for the linear scalar cosmological perturbation in $f(T)$ theory to wider class of theories which includes a scalar field $\Phi$ non-minimally coupled to torsion, and allows $\Phi$-dependence of the function $f$. The case of $f_{TT}=0$, with a scalar field non-minimally coupled to torsion needs a special treatment. In both considered cases we derive self-consistent equations of motion for cosmological perturbation using a solution for non-trivial spin connection. Comment: arXiv admin note: substantial text overlap with arXiv:1911.06064 |
| Databáze: | OpenAIRE |
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