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GR: Fachverband Gravitation und Relativitätstheorie

GR 6: Klassische Allgemeine Relativitästheorie I

GR 6.1: Vortrag

Dienstag, 26. Februar 2013, 18:15–18:30, HS 6

Skyrmion-Wormholes — •Burkhard Kleihaus — Universität Oldenburg, Oldenburg, Germany

Skyrmions are solitons stabilized by a topological charge. When minimally coupled to gravity, self-gravitating Skyrmions emerge from the flat space Skyrmion. They exist up to a critical value of the gravitational coupling parameter. Also Skrymion black holes arise, when an event horizon is imposed.

In this talk I will consider gravitating Skyrmions in the context of another kind of solutions of Einstein gravity, namely wormholes. Here the wormhole connects two asymptotically flat universes and is supported by a scalar phantom field. The coupled Einstein and field equations for the metric, the phantom field and the Skyrme field are solved numerically. The properties of the Skyrmion-wormholes are discussed, especially the domain of existence. It will be shown that Skyrmion-wormholes possess an instability mode, and hence are unstable.