# Hillclimbing inflation

## TL;DR

This paper introduces a novel class of inflation models where the inflaton climbs a potential hill via gravity coupling, analyzing their attractor behavior and observational consistency with cosmic microwave background data.

## Contribution

It presents a new inflationary framework with hill-climbing dynamics, exploring its attractor properties and linking it to natural inflation models.

## Key findings

- Inflation occurs while the inflaton climbs a potential hill.
- Model predictions align with cosmic microwave background observations.
- Attractor behavior similar to known inflation models.

## Abstract

We propose a new class of inflationary models in which inflation takes place while the inflaton is climbing up a potential hill due to a coupling to gravity. We study their attractor behavior, and investigate its relation with known attractors. We also discuss a possible realization of this type of models with the natural inflation, and show that the inflationary predictions come well within the region consistent with the observation of the cosmic microwave background.