Study of some cosmological parameters in logarithmic corrected f(R) gravitational model with swampland conjectures

In this paper, we use corrected f(R) gravitational model which is a polynomial function with a logarithmic term. We employ the slow-roll conditions and obtain the number of cosmological parameters. This helps us to verify the swampland conjectures which guarantees validation of low energy quantum field theory. The obtained results show that the corresponding model is consistent with the swampland conjectures. Also, the upper and lower limits of the parameter n are, respectively, 0.15 and 0.0033. Finally, by using scalar spectrum index ns and tensor-to-scalar ratio r relations and comparing with the Planck 2018 data, we obtain the coefficients alpha, beta and gamma. Also, the corresponding results are constructed by several figures, literature and also Planck 2018 data.

Automated summary

In this paper, a corrected f(R) gravitational model with a logarithmic term was used to determine cosmological parameters and validate swampland conjectures. The model was found to be consistent with the conjectures, with parameter n having upper and lower limits of 0.15 and 0.0033, respectively. Coefficients alpha, beta, and gamma were obtained by comparing scalar spectrum index ns and tensor-to-scalar ratio r relations with Planck 2018 data, and results were supported by various figures, literature, and Planck 2018 data.