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arXiv · 2411.02119

New Black Hole Solutions in f(P) Gravity and their Thermodynamic Nature

Aniruddha Ghosh·Ujjal Debnath
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Abstract

Black holes are the fascinating objects in the universe. They represent extreme deformations in spacetime geometry. Here, we construct f(P) gravity and the first example of static-spherically symmetric black hole solution in f(P) gravity and discuss their thermodynamics. Using the numerical approach and series solution, we discover the solution and demonstrate that it is a generalization of Schwarzschild. The solution is characterized by a single function that satisfies a nonlinear fourth order differential equation. Interestingly, we can analytically calculate the solution s specific heat, Wald entropy, and Hawking temperature as a function of horizon radius. After analyzing the specific heat, we discovered that the black hole is thermodynamically stable over a small horizon radius.

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Aniruddha Ghosh, Ujjal Debnath. 2025-02-12. New Black Hole Solutions in f(P) Gravity and their Thermodynamic Nature. https://arxiv.org/abs/2411.02119

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