Interacting holographic dark energy model and generalized second law of thermodynamics in non-flat universe

TL;DR

This paper examines the validity of the generalized second law of thermodynamics within an interacting holographic dark energy model in a non-flat universe, focusing on the role of the event horizon as the IR cutoff.

Contribution

It investigates the thermodynamic behavior of a holographic dark energy model in a non-flat universe, highlighting conditions under which the second law holds.

Findings

The generalized second law is valid for specific deceleration parameter ranges.

The event horizon as IR cutoff influences thermodynamic law validity.

Results depend on the universe's curvature and horizon choice.

Abstract

In the present paper we consider the interacting holographic model of dark energy to investigate the validity of the generalized second laws of thermodynamics in non-flat (closed) universe enclosed by the event horizon measured from the sphere of the horizon named $L$. We show that for $L$ as the system's IR cut-off the generalized second law is respected for the special range of the deceleration parameter.