Polynomial Chaotic Inflation in the Planck Era

TL;DR

This paper introduces a supergravity-based polynomial chaotic inflation model with quadratic, cubic, and quartic terms, demonstrating compatibility with Planck satellite observations of the cosmic microwave background.

Contribution

It presents a novel polynomial interaction model of chaotic inflation in supergravity that aligns with current observational constraints.

Findings

Scalar spectral index within Planck 1 sigma region

Tensor-to-scalar ratio compatible with observations

Model successfully incorporates polynomial interactions in supergravity

Abstract

We propose a chaotic inflation model in supergravity based on polynomial interactions of the inflaton. Specifically we study the chaotic inflation model with quadratic, cubic and quartic couplings in the scalar potential and show that the predicted scalar spectral index and tensor-to-scalar ratio can lie within the 1 sigma region allowed by the Planck results.