Inflation, Swampland, and Landscape

TL;DR

This paper examines a refined de Sitter conjecture in the context of inflationary models, proposing a method to identify models compatible with observational data and outside the swampland.

Contribution

It introduces a general approach to analyze inflationary potentials near inflection points and tests their compatibility with the refined dS conjecture and observational constraints.

Findings

Identifies inflationary models outside the swampland.

Provides a method for analyzing potentials with inflection points.

Finds parameter spaces consistent with Planck 2018 data.

Abstract

In this paper, we evaluate a new refined de Sitter (dS) conjecture perspective. This conjecture provides interesting conditions in studying various inflationary models. Therefore we challenge refined dS conjecture with a general method for analyzing the potentials with the inflectional point near the top (V''= 0). We find the compatible spaces for our inflationary model that live out of swampland according to the latest observational data, such as Planck 2018.