$f(R)$ Gravity Effects on Charged Accelerating AdS Black Holes using Holographic Tools

TL;DR

This paper explores how $f(R)$ gravity influences holographic entanglement entropy and two-point correlation functions in charged accelerating AdS black holes, revealing a transition point and differing behaviors across acceleration regimes.

Contribution

It introduces a numerical analysis of $f(R)$ gravity effects on holographic tools in accelerating black holes, identifying a transition point and contrasting behaviors of entanglement entropy and correlation functions.

Findings

Holographic quantities decrease with increasing acceleration parameter A.

A transition point separates slow and fast acceleration regimes with different behaviors.

Entanglement entropy and correlation functions do not always behave similarly, showing contrasting trends.

Abstract

We investigate numerically $f(R)$ gravity effects on certain AdS/CFT tools including holographic entanglement entropy and two-point correlation functions for a charged single accelerated Anti-de Sitter black hole in four dimensions. We find that both holographic entanglement entropy and two-point correlation functions decrease by increasing acceleration parameter $A$, matching perfectly with literature. Taking into account the $f(R)$ gravity parameter $\eta$, the decreasing scheme of the holographic quantities persist. However, we observe a transition-like point where the behavior of the holographic tools change. Two regions meeting at such a transit-like point are shown up. In such a nomination, the first one is associated with slow accelerating black holes while the second one corresponds to a fast accelerating solution. In the first region, the holographic entanglement entropy and two-point correlation functions decrease by increasing the $\eta$ parameter. However, the behavioral situation is reversed in the second one. Moreover, a cross-comparison between the entropy and the holographic entanglement entropy is presented providing another counter-example showing that such two quantities do not exhibit similar behaviors.