Dark Energy and Tracker Solution- A Review

TL;DR

This review paper discusses various theoretical models of dark energy, including cosmological constant, scalar fields, and brane world models, along with an overview of tracker solutions in cosmology.

Contribution

It provides a comprehensive overview of dark energy models and introduces elementary ideas on tracker solutions, summarizing recent theoretical developments.

Findings

Multiple dark energy models are systematically reviewed.

Tracker models are introduced with basic conceptual ideas.

The paper highlights the diversity of approaches to explain cosmic acceleration.

Abstract

In this paper, basics and some theoretical models of dark energy are reviewed. Theoretical models include cosmological constant, vacuum fluctuations of quantum fields, scalar field models, chaplygin gas, vector field models and Brane world models. Besides this, some alternate models of dark energy are also included. Finally, some elementary ideas on tracker models are also discussed.