Speaker
Description
Our current understanding of the Universe is that it is isotropic, which means that spherically symmetric models of spacetime are the preferred choice for any geometrical considerations about the Universe. However, some observations point to an asymmetry in the CMB, the "axis of evil," that could be explained by a non-isotropic Universe. This can potentially be leveraged to help solve another issue, namely the problem of strong coupling preventing an analysis of cosmological perturbations in teleparallel theories. In this work, we make use of three geometries that have a weaker symmetry than SO(3) and belong to the so-called Bianchi classes/types II, III and IX, to calculate analytical and/or numerical solutions to the 1-parameter NGR field equations. We also engage in an initial analysis of the precise behaviour of these solutions, especially their isotropic and GR limits.