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

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. © 2013 IOP Publishing Ltd.