München 2019 – wissenschaftliches Programm
GR 7.1: Vortrag
Mittwoch, 20. März 2019, 11:30–11:45, HS 5
Wormhole Solutions in Dilatonic Einstein-Gauss-Bonnet Theory — Panagiota Kanti1, Burkhard Kleihaus2, and •Jutta Kunz2 — 1University of Ioannina, Greece — 2University of Oldenburg, Germany
Dilatonic Einstein-Gauss-Bonnet theory allows for wormhole solutions without the need for exotic matter. Here the presence of the higher-curvature term coupled to a dilaton, as suggested by string theory, leads to an effective stress-energy tensor, violating the energy conditions. The static wormhole solutions may possess a single throat or a double throat with an equator in between. The global charges of the wormhole solutions are analyzed as well as the properties of their throat(s). Linear stability of the static solutions is considered, and slowly rotating wormhole solutions are obtained perturbatively.