245 research outputs found
Complete, Single-Horizon Quantum Corrected Black Hole Spacetime
We show that a semi-classical polymerization of the interior of Schwarzschild
black holes gives rise to a tantalizing candidate for a non-singular, single
horizon black hole spacetime. The exterior has non-zero quantum stress energy
but closely approximates the classical spacetime for macroscopic black holes.
The interior exhibits a bounce at a microscopic scale and then expands
indefinitely to a Kantowski-Sachs spacetime. Polymerization therefore removes
the singularity and produces a scenario reminiscent of past proposals for
universe creation via quantum effects inside a black hole.Comment: 5 pages, 2 figures. A shortened version with some new reference
The Partition Function for Topological Field Theories
We use a Hodge decomposition and its generalization to non-abelian flat
vector bundles to calculate the partition function for abelian and non- abelian
BF theories in dimensions. This enables us to provide a simple proof that
the partition function is related to the Ray-Singer torsion defined on flat
vector bundles for all odd-dimensional manifolds, and is equal to unity for
even dimensions.Comment: 23 pages, plain-TeX fil
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