Thermodynamics of interacting tachyonic scalar field

TL;DR

This paper explores the thermodynamic behavior of an interacting tachyonic scalar field in the universe, highlighting how interactions lead to equilibrium and energy transfer among components, with implications for cosmic thermodynamics.

Contribution

It introduces a thermodynamic framework for interacting tachyonic scalar fields, emphasizing the role of interactions in reaching equilibrium and energy transfer dynamics.

Findings

Interaction among field components is necessary for equilibrium.

Energy transfer occurs among components with local energy conservation violation.

The zeroth law of thermodynamics applies to the cosmic field components.

Abstract

In this paper we discuss the laws of thermodynamics for interacting tachyonic scalar field. The components of the tachyonic scalar field in the universe are taken to exist in the state of non-equilibrium initially, but due to interaction they undergo a transition towards the equilibrium state. We show that the zeroth law of thermodynamics demands interaction among the components of cosmic field. The second law of thermodynamics is governing dynamics in transfer of energy among the three components of the proposed field with local violation of conservation of energy for individual components.