The Effects of Tachyonic and Phantom Fields in the Intermediate and Logamediate Scenarios of the Anisotropic Universe

TL;DR

This paper investigates the behavior of tachyonic and phantom scalar fields in different anisotropic universe models, analyzing how their potentials evolve in intermediate and logamediate expansion scenarios.

Contribution

It explores the nature and evolution of scalar field potentials in anisotropic universes under various dark energy models, considering non-interacting dark energy and dark matter.

Findings

Potential for normal tachyonic field decreases in intermediate scenario.

Potentials for phantom tachyonic and phantom fields increase in intermediate scenario.

In logamediate scenario, normal tachyonic potential increases, while phantom potentials decrease.

Abstract

In this work, we have analyzed two scenarios namely, "intermediate" and "logamadiate" scenarios for closed, open and flat anisotropic universe in presence of phantom field, normal tachyonic field and phantom tachyonic field. We have assumed that there is no interaction between the above mentioned dark energy and dark matter. In these two types of the scenarios of the universe, the nature of the scalar fields and corresponding potentials have been investigated. In intermediate scenario, (i) the potential for normal tachyonic field decreases, (ii) the potentials for phantom tachyonic field and phantom field increase with the corresponding fields. Also in logamediate scenario, (i) the potential for normal tachyonic field increases, (ii) the potentials for phantom tachyonic field and phantom field decrease with the corresponding fields.