Motion4D – A library for lightrays and timelike worldlines in the theory of relativity
Description
Abstract The Motion4D-library solves the geodesic equation as well as the parallel- and Fermi–Walker-transport in four-dimensional Lorentzian spacetimes numerically. Initial conditions are given with respect to natural local tetrads which are adapted to the symmetries or the coordinates of the spacetime. Beside some already implemented metrics like the Schwarzschild and Kerr metric, the object oriented structure of the library permits to implement other metrics or integrators in a straight forward man... Title of program: Motion4D-library Catalogue Id: AEEX_v1_0 Nature of problem Solve geodesic equation, parallel and Fermi-Walker transport in four-dimensional Lorentzian spacetimes. Versions of this program held in the CPC repository in Mendeley Data AEEX_v1_0; Motion4D-library; 10.1016/j.cpc.2009.07.014 AEEX_v2_0; Motion4D-library; 10.1016/j.cpc.2009.10.021 AEEX_v3_0; Motion4D-library; 10.1016/j.cpc.2011.02.009 AEEX_v3_1; Motion4D-library; 10.1016/j.cpc.2014.04.020 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)