Imprints of Short Distance Physics On Inflationary Cosmology

TL;DR

This paper investigates how modifications to short distance physics can influence the inflationary perturbation spectrum, potentially leading to observable effects in the context of power-law inflation.

Contribution

It introduces a model for short distance physics effects on inflationary perturbations and analyzes their impact on the density perturbation spectrum.

Findings

Distinctive effects on the perturbation spectrum are identified.

Potential observability of these effects in cosmological data.

Specific impact demonstrated for power-law inflation.

Abstract

We analyze the impact of certain modifications to short distance physics on the inflationary perturbation spectrum. For the specific case of power-law inflation, we find distinctive -- and possibly observable -- effects on the spectrum of density perturbations.