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

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.

16 pages, 3 figures, Accepted in AHEP

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