# Pseudo Newtonian Potential For a Rotating Kerr Black Hole Embedded in Quintessence

## TL;DR

This paper develops a pseudo-Newtonian potential for a rotating Kerr black hole embedded in quintessence, providing a simplified model to analyze particle motion in dark energy-influenced space-times with minimal error.

## Contribution

It introduces a novel pseudo-Newtonian force model for Kerr black holes in quintessence, extending previous models to include dark energy effects with high accuracy.

## Key findings

- The model has at most 4.95% error compared to general relativity.
- It explains the influence of dark energy on black hole surroundings.
- Discusses implications for the universe's fate considering dark energy.

## Abstract

Pseudo-Newtonian Potential has always been a useful tool to discuss the motion of a particle in space-time to avoid the tedious and nearly impossible nonlinear computations coming from the field equations of general relativity. Mukhopadhyay, in 2002, has introduced such a pseudo-Newtonian potential for rotating Kerr black hole which is efficient enough to replicate the scenario of the classical mechanics. But there was no such model to explain the dark energy realm. In 2016 S Ghosh introduced a Lagrangian for such rotating black hole embedded in quintessence. in this article we obtained a pseudo-Newtonian force for this new black hole solution embedded quintessence. This paper introduces a simple computational scheme to evaluate a pseudo-Newtonian force for any space-time metric. This model possesses at most $4.95 \%$ error corresponding to general relativistic results. Since we took a popular agent of dark energy, i.e., quintessence into account, this is a general form of pseudo-Newtonian force to explain late time accelerating universe. In this paper, it also has been discussed about the difference between the pseudo-Newtonian force with and without dark energy effect. This paper also explains the natures of our present universe and its fate(locally around a black hole when repulsive negative pressure of dark energy is taken into account).