Notes on dark energy interacting with dark matter and unparticle in loop quantum cosmology

TL;DR

This paper explores how dark energy interacts with dark matter and unparticles within loop quantum cosmology, identifying stable attractor solutions and analyzing their implications for cosmic evolution.

Contribution

It introduces four toy models with different coupling functions to study dark sector interactions in loop quantum cosmology, highlighting stable attractor solutions.

Findings

Two stable attractor solutions: dark energy dominated and dark matter dominated universes.

Unstable models predict either a universe filled with dark energy or devoid of it.

Interaction models influence the long-term cosmic evolution.

Abstract

We investigate the behavior of dark energy interacting with dark matter and unparticle in the framework of loop quantum cosmology. In four toy models, we study the interaction between the cosmic components by choosing different coupling functions representing the interaction. We found that there are only two attractor solutions namely dark energy dominated and dark matter dominated Universe. The other two models are unstable, as they predict either a dark energy filled Universe or one completely devoid of it.