Graceful exit from inflation for minimally coupled Bianchi A scalar field models

TL;DR

This paper investigates the conditions under which inflation ends gracefully in Bianchi A scalar field models, combining analytical and numerical methods to extend understanding beyond restricted solution classes.

Contribution

It provides new analytical and numerical insights into the conditions enabling a graceful exit from inflation in Bianchi A scalar field models.

Findings

Identifies conditions for inflation to end in Bianchi A models

Demonstrates the effectiveness of combined analytical and numerical approaches

Extends understanding of inflationary dynamics beyond restricted solutions

Abstract

We consider the dynamics of Bianchi A scalar field models which undergo inflation. The main question is under which conditions does inflation come to an end and is succeeded by a decelerated epoch. This so-called "graceful exit" from inflation is an important ingredient in the standard model of cosmology, but is, at this stage, only understood for restricted classes of solutions. We present new results obtained by a combination of analytical and numerical techniques.