# Dressed Power-law Inflation with Cuscuton

## TL;DR

This paper introduces a novel inflation model incorporating a cuscuton field, which yields power-law inflation solutions compatible with Planck data, improving the observational viability of such models.

## Contribution

It presents an exact power-law inflation solution with a cuscuton, demonstrating its consistency with observational data, unlike traditional power-law inflation.

## Key findings

- Cuscuton enables power-law inflation compatible with Planck data
- Cuscuton generally improves inflation model predictions
- New exact power-law solution found with cuscuton

## Abstract

We study dressed inflation with a cuscuton and find a novel exact power-law solution. It is well known that the conventional power-law inflation is inconsistent with the Planck data. In contrast to this standard lore, we find that power-law inflation with a cuscuton can be reconciled with the Planck data. Moreover, we argue that the cuscuton generally ameliorates inflation models so that predictions are consistent with observations.