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

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

28pages, 16 figures, accepted in MPLA

References in corpus (9)

• On the Geometry of the String Landscape and the Swampland
• Hydrostatic equilibrium and stellar structure in f(R)-gravity
• Swampland Implications of GW170817-compatible Einstein-Gauss-Bonnet Gravity
• Inflationary universe from perfect fluid and $F(R)$ gravity and its comparison with observational data
• Structure of neutron stars in R-squared gravity
• Cosmological dynamics of Scalar--Tensor Gravity
• Is exponential gravity a viable description for the whole cosmological history?
• Further refining Swampland Conjecture on inflation in general scalar-tensor theories of gravity
• Warm inflation with bulk viscous pressure for different solutions of an anisotropic universe

Cited by in corpus (4)

• Weak Cosmic Censorship and Weak Gravity Conjectures in CFT Thermodynamics
• de Sitter Swampland Conjecture in String Field Inflation
• Cosmic evolution of the logarithmic f(R) model and the dS swampland conjecture
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme