Evolution of the equation of state parameters of cosmological tachyonic field components through mutual interaction

TL;DR

This paper investigates how the equation of state parameters of cosmological tachyonic fields evolve through mutual interactions, revealing temperature-dependent patterns that differentiate dark energy and dark matter, and addressing key cosmological problems.

Contribution

It introduces a model of interacting tachyonic scalar fields with temperature-dependent EOS evolution, offering insights into dark energy, dark matter, and solutions to the cosmological constant and coincidence problems.

Findings

Temperature-dependent EOS patterns emerge during universe evolution.

Two main components identified as dark energy and dark matter.

Proposes a potential solution to the cosmological constant and coincidence problems.

Abstract

We study the perturbed equation of state (EOS) parameters of the cosmological tachyonic scalar field components and their mutual time-dependent interaction. It is shown that the discrete temperature-dependent pattern of the EOS emerges from an initial continuum along the evolution of the universe. This leads to two major components in form of dark energy and dark matter, and also suggests a solution to the cosmological constant problem and the coincidence problem.