Bremen 2017 – scientific programme

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GR: Fachverband Gravitation und Relativitätstheorie

GR 7: Klassische Allgemeine Relativitätstheorie 2

GR 7.3: Talk

Tuesday, March 14, 2017, 17:00–17:15, SFG 0140

Properties of Rotating Ellis Wormholes — •Xiao Yan Chew, Burkhard Kleihaus, and Jutta Kunz — Institut of Physics, University of Oldenburg, D-26111, OLdenburg, Germany

Wormholes are regular solutions of the Einstein equation. They describe spacetimes with two asymptotically flat regions connected by a throat. A classical example is the static Ellis wormhole which is supported by a phantom scalar field. The stationary rotating generalization of the Ellis wormhole with symmetrical properties has been found and discussed recently.

Here we consider the non-symmetric rotating Ellis wormholes. We present their mass formulae, and discuss the geometry of the throat and ergoregion. We show that the limiting configurations of these wormholes are the extremal Kerr black holes. Furthermore, the geodesics of these wormholes are analyzed and we demonstrate that they possess bound orbits.