# Quantum-gravity effects for excited states of inflationary perturbations

## TL;DR

This paper explores how quantum-gravity effects modify the power spectra of inflationary perturbations when the initial states are excited rather than vacuum, revealing that excitation levels influence quantum corrections.

## Contribution

It extends previous models by incorporating excited initial states for scalar and tensor perturbations in quantum-gravitational corrections during inflation.

## Key findings

- Quantum-gravitational corrections depend on initial excitation levels.
- Power spectra are modified by pre-factors involving excitation numbers.
- Results generalize previous vacuum-based models.

## Abstract

We generalize former findings regarding quantum-gravitational corrections arising from a canonical quantization of a perturbed FLRW universe during inflation by considering an initial state for the scalar and tensor perturbations that generalizes the adiabatic vacuum state and allows us to consider the scenario that the perturbation modes start their evolution in an excited state. Our result shows that the quantum-gravitationally corrected power spectra get modified by pre-factors including the excitation numbers.