Göttingen 2025 – scientific programme

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GR: Fachverband Gravitation und Relativitätstheorie

GR 9: Poster

GR 9.12: Poster

Wednesday, April 2, 2025, 16:15–18:15, ZHG Foyer 1. OG

Visualizing Curved Spacetime: Curvature Approximation with Cosmological Sector Models via a Web App — •Vassilios Marakis, Corvin Zahn, and Ute Kraus — Universität Hildesheim

The sector model provides a visualization of curved spacetime by dividing the coordinate space into discrete blocks of flat Minkowski space. By applying the Regge calculus and block-to-block transformations, it is possible to approximate the curvature values of the Riemann curvature tensor at specific points in spacetime. Through a web application, we study the effectiveness of this visual approach in estimating these values and examine how increasing the refinement of the coordinate space improves the accuracy of the approximation. This method is demonstrated using a cosmological example featuring a positive cosmological constant.

Keywords: sector models; approximation; curvature; web app; cosmology