Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Minimal Length Deformation of Spacetime Curvature

Version 1 : Received: 6 June 2023 / Approved: 7 June 2023 / Online: 7 June 2023 (11:06:17 CEST)

How to cite: Maher, M.; Tawfik, A.N.; Tarabia, F.S.; Farouk, F.T. Minimal Length Deformation of Spacetime Curvature. Preprints 2023, 2023060543. https://doi.org/10.20944/preprints202306.0543.v1 Maher, M.; Tawfik, A.N.; Tarabia, F.S.; Farouk, F.T. Minimal Length Deformation of Spacetime Curvature. Preprints 2023, 2023060543. https://doi.org/10.20944/preprints202306.0543.v1

Abstract

When generalized noncommutative Heisenberg algebra accommodating impacts of finite gravitational fields as specified by loop quantum gravity, doubly–special relativity, and string theory, for instance, is thoughtfully applied to the eight-dimensional manifold (M8), the generalization of the Riemannian manifold becomes imminent. By constructing the deformed affine connections on a four-dimensional Riemannian manifold, we have determined the minimal length deformation of Riemann curvature tensor and its contractions, the Ricci curvature tensor, and Ricci scalar. Consequently, we have been able to construct the deformed Einstein tensor. As in Einstein’s classical theory of general relativity, we have proved that the covariant derivative of the deformed Einstein tensor vanishes, as well. We conclude that the minimal length correction suggests a correction to the spacetime curvature which is manifest in the additional curvature terms of the corrected Riemann tensor and its contractions. Accordingly, the spacetime curvature endows additional curvature and geometrical structure.

Keywords

Deformed theories of gravity; Noncommutative geometry; Curved spacetime; Relativity and gravitation; Deformed Spacetime Curvature

Subject

Physical Sciences, Theoretical Physics

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