Two-dimensional Lifshitz-like AdS black holes in $F(R)$ gravity

Abstract

Two-dimensional ($2D$) Lifshitz-like black holes in special $F(R)$ gravity cases are extracted. We indicate an essential singularity at $r=0$, covered with an event horizon. Then conserved and thermodynamic quantities such as temperature, mass, entropy, and the heat capacity of $2D$ Lifshitz-like black holes in $F(R)$ gravity are evaluated. Our analysis shows that $2D$ Lifshitz-like black hole solutions can be physical solutions, provided that the cosmological constant is negative ($\Lambda <0$). Indeed, there is a phase transition between stable and unstable cases by increasing the radius of AdS black holes. In other words, the $2D$ Lifshitz-like AdS black holes with large radii are physical and enjoy thermal stability. The obtained $2D$ Lifshitz-like AdS-black holes in $F(R)$ gravity turn to the well-known $2D$ Schwarzschild AdS-black holes when the Lifshitz-like parameter is zero ($s=0$). Also, correspondence between these black hole solutions and the $2D$ rotating black hole solutions is found by adjusting the Lifshitz-like parameter.

arXiv comment13 pages, 9 figures, accepted in Journal of Mathematical Physics

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