Exposition to Staggered Multi-Field Inflation

Understand

I investigate multi-field inflationary models with fields that decay during inflation, leading to staggered inflation.

• This feature is natural in many models motivated by string theory, for instance if inflatons are related to interbrane distances and the branes start to annihilate during inflation.
• A short exposition to an analytic framework is provided, enabling the computation of leading order corrections to observables, i.e.
• the scalar spectral index.