Tensorial Perturbations in an Accelerating Universe

TL;DR

This paper investigates how tensorial perturbations, specifically gravitational waves, influence the observed redshift in an accelerating universe with particle production, providing calculations for induced redshift modes.

Contribution

It introduces a novel analysis of gravitational wave effects on redshift perturbations in a universe with particle production, expanding understanding of cosmological observations.

Findings

Calculated modes of redshift perturbation due to gravitational waves.

Demonstrated impact of particle production on redshift observations.

Provided theoretical framework for induced redshift in such cosmological models.

Abstract

We study tensorial perturbations (gravitational waves) in a universe with particle production (OSC). The background of gravitational waves produces a perturbation in the redshift observed from distant sources. The modes for the perturbation in the redshift (induced redshift) are calculated in a universe with particle production.