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GR: Gravitation und Relativitätstheorie

GR 403: Quantengravitation: Loops

GR 403.4: Talk

Thursday, March 23, 2006, 15:00–15:20, K

Inhomogeneities in Loop Quantum Gravity — •Martin Bojowald — Institute for Gravitational Physics and Geometry, The Pennsylvania State University, University Park, PA 16802, USA

While several characteristic properties of general relativity, such as singularities, can already be seen in homogeneous situations, detailed physical applications require inhomogeneities. This is relevant for cosmology and black holes, and can be introduced by perturbations or by midisuperspace reduction. Corresponding derivations at the quantum level then show modifications to classical equations on small length scales which can have significant implications. Applications are the fate of classical singularities, structure formation in cosmology, and black hole evaporation.