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GR: Fachverband Gravitation und Relativitätstheorie
GR 19: Quantengravitation und Quantenkosmologie I
GR 19.1: Talk
Friday, March 1, 2013, 12:30–12:45, HS 6
Singularity avoidance in quantum cosmology — Mariam Bouhmadi-López1, Claus Kiefer2, and •Manuel Krämer2 — 1Instituto de Estructura de la Materia, IEM-CSIC, Serrano 121, 28006 Madrid, Spain — 2Institut für Theoretische Physik, Universität zu Köln, Zülpicher Straße 77, 50937 Köln, Germany
One of the aims of a theory of quantum gravity is to resolve the singularities appearing in general relativity. In this talk we give an overview of how singularities are avoided in quantum-cosmological models that are dominated by dark energy. We show how one can model universes with different kinds of singularities by choosing specific types of a generalized Chaplygin gas and we present our recent results on how to resolve a certain sub-class of these singularities in a quantum-cosmological approach based on the Wheeler--DeWitt equation.