QCD modified ghost scalar field dark energy models

TL;DR

This paper explores QCD modified ghost scalar field models of dark energy within FRW cosmology, analyzing their dynamics, structure formation, and scalar field reconstructions in a non-flat universe with interaction and viscosity.

Contribution

It introduces a comprehensive study of QCD modified ghost dark energy models, including their equations of state, structure growth, and scalar field reconstructions in a non-flat FRW universe.

Findings

Derived the equation of state and deceleration parameter for MGDE.

Analyzed structure formation in the linear perturbation regime.

Reconstructed scalar field models corresponding to MGDE evolution.

Abstract

Within the framework of FRW cosmology, we study the QCD modified ghost scalar field models of dark energy in the presence of both interaction and viscosity. For a spatially non-flat FRW universe containing modified ghost dark energy (MGDE) and dark matter, we obtain the equation of state of MGDE, the deceleration parameter as well as a differential equation governing the MGDE density parameter. We also investigate the growth of structure formation for our model in a linear perturbation regime. Furthermore, we reconstruct both the dynamics and potentials of the quintessence, tachyon, K-essence and dilaton scalar field DE models according to the evolution of the MGDE density.