Quinstant Dark Energy Predictions for Structure Formation

TL;DR

This paper investigates quinstant dark energy models' ability to predict cosmic structure formation, finding they perform well in linear regimes but not in non-linear regimes at higher redshifts.

Contribution

It introduces and evaluates quinstant dark energy models, combining quintessence and negative cosmological constant, for their effectiveness in structure formation predictions.

Findings

Accurately predicts structure formation in linear regime

Fails to predict structure formation in non-linear regime at redshifts > 1

Highlights limitations of quinstant dark energy models in non-linear evolution

Abstract

We explore the predictions of a class of dark energy models, quinstant dark energy, concerning the structure formation in the Universe, both in the linear and non-linear regimes. Quinstant dark energy is considered to be formed by quintessence and a negative cosmological constant. We conclude that these models give good predictions for structure formation in the linear regime, but fail to do so in the non-linear one, for redshifts larger than one.