Logarithmic corrected $f(R)$ gravitational model and swampland conjectures

Abstract

In this paper, we use corrected $f(R)$ gravitational model which is polynomial function with a logarithmic term. In that case, we employ the slow-roll condition and obtain the number of cosmological parameter. This help us to verify the swampland conjectures which is guarantee the validation of low - energy quantum field theory. The obtained results shown that the corresponding model is consistent with the swampland conjectures. Also the upper and lower limit of the parameter \textcolor{red}{$n$} are \textcolor{blue}{0.15} and \textcolor{blue}{0.0033}. Finally, by using scalar spectrum index $n_s$ and tensor to scalar ratio $r$ relations and compared with Planck 2018 empirical data, we obtain the coefficients $\alpha$,$\beta$ and $\gamma$. Also, the corresponding results are creaked by several figures, literature and also plank 2018 data.

17 pages. 13 figures

References in corpus (4)

• Disappearing cosmological constant in f(R) gravity
• The String Landscape and the Swampland
• Structure of neutron stars in R-squared gravity
• Higgs Inflation and the Refined dS Conjecture