# The inflationary mechanism in Asymptotically Safe Gravity

## TL;DR

This paper explores how the asymptotic safety conjecture in quantum gravity could explain cosmological observations, particularly the scale-invariance of the cosmic microwave background fluctuations, through a toy model.

## Contribution

It introduces a toy model demonstrating the impact of the non-trivial fixed point in asymptotically safe gravity on cosmological phenomena.

## Key findings

- Departure from the fixed point can produce scale-invariant power spectra.
- The model links quantum gravity effects to observable cosmological features.
- Implications for understanding early universe physics.

## Abstract

According to the asymptotic safety conjecture, gravity is a renormalizable quantum field theory whose continuum limit is defined by an interacting fixed point of the renormalization group flow. In these proceedings we review some implications of the existence of this non-trivial fixed point in cosmological contexts. Specifically, we discuss a toy model exemplifying how the departure from the fixed-point regime can explain the approximate scale-invariance of the power spectrum of temperature fluctuations in the cosmic microwave background.