Theoretical Aspects of Quintom Models

TL;DR

This paper explores the theoretical properties of Quintom models, which can cross the cosmological constant boundary and are relevant for dark energy and early universe bounce scenarios.

Contribution

It provides a theoretical analysis of Quintom models, highlighting their ability to cross w=-1 and their implications for both dark energy and early universe cosmology.

Findings

Quintom models can cross the w=-1 boundary.

They are applicable to dark energy modeling.

They can lead to a bounce scenario in the early universe.

Abstract

Quintom models, with its Equation of State being able to cross the cosmological constant boundary $w=-1$, turns out to be attractive for phenomenological study. It can not only be applicable for dark energy model for current universe, but also lead to a bounce scenario in the early universe.