Cosmological Model of Interacting Phantom and Yang-Mills Fields

TL;DR

This paper develops a cosmological model where interacting phantom and Yang-Mills fields drive accelerated expansion, providing exact solutions and reconstructed equations of state, advancing understanding of dark energy dynamics.

Contribution

It introduces a novel interacting phantom-Yang-Mills cosmological model with dilaton-type coupling and derives exact solutions for accelerated expansion.

Findings

Exact solutions for accelerated expansion in FRW cosmology.

Reconstructed effective equations of state for different expansion regimes.

Derived potentials of phantom fields corresponding to various cosmological scenarios.

Abstract

In this paper, we consider a model of interacting phantom and Yang-Mills (YM) fields supposing the dilaton-type coupling. Making use of specific solution for YM equation previously found by the author, we obtain simple exact solutions for the accelerated expansion of FRW cosmological model. Besides, we derive the induced potentials of phantom field corresponding to some given regimes of expansion.The effective equation of state (EoS) have been reconstructed for all types of the models considered here.