Thermodynamics and Heat Engines of Black Holes with Born-Infeld-type Electrodynamics

TL;DR

This paper explores the thermodynamics, phase transitions, and heat engine efficiency of electrically charged black holes within a novel nonlinear electrodynamics framework, revealing effects of theory parameters on black hole behavior.

Contribution

It introduces a new model of nonlinear electrodynamics for black holes, deriving thermodynamic laws, analyzing phase transitions, and evaluating heat engine efficiency.

Findings

Black holes can have up to two horizons.

Phase transitions resemble Van der Waals behavior.

Parameters influence heat engine efficiency.

Abstract

In this paper we have studied electrically charged black holes in a new model of nonlinear electrodynamics introduced by Kruglov in Ref. [1]. There are two parameters for the theory and the black hole could have up to two horizons. Thermodynamics is studied in the extended phase space where the pressure is proportional to the cosmological constant. First law and the Smarr formula are derived. There are phase transitions similar to the Van der Waals liquid-gas phase transitions. Black hole is also studied as a heat engine and have discussed how the parameters in the nonlinear electrodynamics theory effect the efficiency of the heat engine.