General form of the function $f(\mathbb{Q})$ using cylindrically static spacetime
Abstract
We find an exact static solution in four dimensions to the field equations of the gravity by using a cylindrically static spacetime with two different ansatz, and . This solution is derived without imposing any conditions on . The black hole solution involves four constants: , , , and . Among these, is linked to the cosmological constant, to the black hole's mass, while and are responsible for the deviation of the solution from the linear form of . We demonstrate how the analytical function relies on . When is zero, becomes a constant function, leading to the non-metricity case. We investigate the singularity of this solution and show that the Kretschmann invariant has a much milder singularity compared to the non-metricity case. We produce a black hole that rotates with non-vanishing values of and by using a coordinate transformation. Then, we analyze the laws of thermodynamics to determine the physical characteristics of this black hole solution and demonstrate that it is locally thermodynamically stable.
Keywords
Cite
@article{arxiv.2503.02902,
title = {General form of the function $f(\mathbb{Q})$ using cylindrically static spacetime},
author = {G. G. L. Nashed},
journal= {arXiv preprint arXiv:2503.02902},
year = {2025}
}
Comments
12 pages, 2 Figs