Tachyonic field interacting with Scalar (Phantom) Field

TL;DR

This paper investigates the interaction between tachyonic and scalar or phantom fields in the universe, showing how energy transfer affects their potentials over time.

Contribution

It introduces a model where tachyonic fields interact with scalar or phantom fields, analyzing the evolution of their potentials and energy transfer dynamics.

Findings

Interaction term decays over time

Scalar and tachyonic potentials decrease

Phantom potential increases

Abstract

In this letter, we have considered the universe is filled with the mixture of tachyonic field and scalar or phantom field. If the tachyonic field interacts with scalar or phantom field, the interaction term decays with time and the energy for scalar field is transferred to tachyonic field or the energy for phantom field is transferred to tachyonic field. The tachyonic field and scalar field potentials always decrease, but phantom field potential always increases.