The scalar-torsion gravity corrections in the first-order inflationary models

Autor:	Fomin, I. V., Chervon, S. V., Duchaniya, L. K., Mishra, B.
Rok vydání:	2024
Předmět:	General Relativity and Quantum Cosmology High Energy Physics - Theory
Druh dokumentu:	Working Paper
Popis:	In this work, we consider the corrections to the cosmological models based on the teleparallel equivalent of general relativity induced by the non-minimal coupling between scalar field and torsion. To determine these corrections, we consider a power-law parametrization of the deviations between the teleparallel equivalent of general relativity and the scalar-torsion gravity. The estimates of the possible influence of the non-minimal coupling of the scalar field and torsion on the background cosmological parameters and the parameters of cosmological perturbations for the inflationary models implying linear relation between tensor-to-scalar ratio and spectral index of the scalar perturbations are obtained. A procedure for verifying these inflationary models based on observational constraints on the values of cosmological perturbation parameters is also considered. Comment: 12 pages, 1 figure
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2407.14542 Zobrazit plný text záznamu View this record from Arxiv