Constraints on cosmological parameters in light of the scalar-tensor theory of gravity and swampland conjectures

TL;DR

This paper investigates how scalar-tensor gravity models align with cosmological observations and swampland conjectures, analyzing various inflationary models to assess their viability and compatibility with current data.

Contribution

It introduces a comprehensive analysis of inflationary models within scalar-tensor gravity under swampland constraints, comparing theoretical predictions with observational data.

Findings

Certain models are compatible with observational data.

Some models violate swampland conjectures.

Constraints narrow down viable inflationary scenarios.

Abstract

In this paper, we study various cosmological parameters and quantities in scalar-tensor gravity from inflation and swampland conjecture. Therefore, by selecting different models such as power-law, exponential, and logarithmic in the framework of scalar-tensor theory, we obtain potential, tensor-to-scalar ratio, and the scalar spectral index. Next, we examine new constraints and compare the corresponding results with the latest observable data. Here, we take advantage of the obtained results and determine the compatibility or incompatibility of the corresponding model with the swampland conjectures