English

Slow-roll inflation in $f(T,\mathcal{T})$ modified gravity

General Relativity and Quantum Cosmology 2023-11-14 v2 High Energy Physics - Theory

Abstract

In this article, we explore the concept of cosmological inflation within the framework of the f(T,T)f (T,\mathcal{T}) theory of gravity, where ff is a general function of the Torsion scalar TT and the trace, T\mathcal{T}, of the energy-momentum tensor. It is assumed that the conditions of slow-roll inflation are applicable inf(T,T)f (T,\mathcal{T}) gravity. To determine different observables related to inflation, such as the tensor-to-scalar ratio rr, scalar spectral index nsn_s, spectral index αs \alpha_s , and tensor spectral index ntn_t, the Hubble slow-roll parameters are utilized for a particular model of f(T,T)f (T,\mathcal{T}). Lastly, an assessment has been carried out to determine the feasibility of the models by conducting a numerical analysis of the parameters. The findings indicate that it is feasible to achieve compatibility with the observational measurements of slow-roll parameters by utilizing different values of the free parameters.

Keywords

Cite

@article{arxiv.2310.05987,
  title  = {Slow-roll inflation in $f(T,\mathcal{T})$ modified gravity},
  author = {Aaqid Bhat and Sanjay Mandal and P. K. Sahoo},
  journal= {arXiv preprint arXiv:2310.05987},
  year   = {2023}
}

Comments

Chinese Physics C published version

R2 v1 2026-06-28T12:45:02.968Z