Rotating Lifshitz-like black holes in F(R) gravity

TL;DR

This paper presents an analytical rotating Lifshitz-like black hole solution in three-dimensional F(R) gravity, exploring its geometric, optical, thermodynamic, and holographic properties, including phase transitions and efficiency of a heat engine.

Contribution

It introduces a new rotating Lifshitz-like black hole solution in F(R) gravity and analyzes its optical, thermodynamic, and holographic features, including phase transitions and heat engine efficiency.

Findings

Black hole reduces to charged rotating BTZ in a special limit.

Constraints on exponents are necessary for acceptable optical behavior.

Identified van der Waals-like phase transition and critical quantities.

Abstract

Regarding a particular class of pure $F(R)$ gravity in three dimensions, we obtain an analytical rotating Lifshitz-like black hole solution. We first investigate some geometrical properties of the obtained solution that reduces to a charged rotating BTZ black hole in a special limit. Then, we study the optical features of such a black hole like the photon orbit and the energy emission rate and discuss how electric charge, angular momentum, and exponents affect them. In order to have an acceptable optical behavior, we should apply some constraints on the exponents. We continue our investigation with the study of the thermodynamic behavior of the solutions in the extended phase space and examine the validity of the first law of thermodynamics besides local thermal stability through using of heat capacity. Evaluating the existence of van der Waals-like phase transition, we obtain critical quantities and show how they change under the variation of black hole parameters. Finally, we construct a holographic heat engine of such a black hole and obtain its efficiency in a cycle. By comparing the obtained efficiency with the Carnot one, we examine the second law of thermodynamics.