2019/03/31 by Claus Kiefer, Nick Kwidzinski, Dennis Piontek · 1 citation
Physics and Astronomy · #gr-qc #hep-th
paper · pdf · doi:10.1140/epjc/s10052-019-7193-6
published as Eur. Phys. J. C (2019) 79:686 · 15 pages, 8 figures, final version
arxiv created 2019/08/22 · arxiv updated 2019/09/04
We extend recent discussions of singularity avoidance in quantum gravity from isotropic to anisotropic cosmological models. The investigation is done in the framework of quantum geometrodynamics (Wheeler-DeWitt equation). We formulate criteria of singularity avoidance for general Bianchi class A models and give explicit and detailed results for Bianchi I models with and without matter. We find that the classical singularities can generally be avoided in these models.