Topological inflation induced by a non-minimally coupled massive scalar field

TL;DR

This paper explores a new inflationary solution driven by a non-minimally coupled massive scalar field, where inflation occurs inside a domain wall, relaxing previous constraints on model parameters.

Contribution

It introduces a novel inflationary scenario within domain walls for non-minimally coupled scalar fields, expanding the understanding of inflation mechanisms.

Findings

Inflation can occur inside a domain wall in this model.

The new solution relaxes previous constraints on the coupling constant.

The model revisits and extends earlier work on scalar field-driven inflation.

Abstract

We reanalyze cosmology of a non-minimally coupled massive scalar field which was originally discussed by Futamase and Maeda in the context of chaotic inflation scenario. We find a new type of inflationary solution where inflation occurs inside a domain wall. This new solution relaxes constraints on the coupling constant for successful inflation.