Tachyon Reconstruction of Ghost Dark Energy

TL;DR

This paper links ghost dark energy to a tachyon scalar field, showing that the universe's evolution driven by ghost energy can be fully described by tachyon dynamics, with reconstructed potential and behavior.

Contribution

It introduces a novel connection between ghost dark energy and tachyon fields, providing a new framework to model dark energy evolution.

Findings

Ghost dark energy evolution is fully described by a tachyon scalar field.

Reconstructed tachyon potential matches the ghost energy density evolution.

Provides a new approach to model dark energy dynamics.

Abstract

Recently it has been argued that a possible source for the dark energy may arise due to the contribution to the vacuum energy of the QCD ghost in a time-dependent background. In this paper we establish a connection between interacting ghost dark energy and tachyon field. It is demonstrated that the evolution of the ghost dark energy dominated universe can be described completely by a single tachyon scalar field. The potential and the dynamics of the tachyon field are reconstructed according to the evolutionary behavior of ghost energy density.