Wormholes in dilatonic Einstein-Gauss-Bonnet theory

Phys Rev Lett. 2011 Dec 30;107(27):271101. doi: 10.1103/PhysRevLett.107.271101. Epub 2011 Dec 28.

Abstract

We construct traversable wormholes in dilatonic Einstein-Gauss-Bonnet theory in four spacetime dimensions, without needing any form of exotic matter. We determine their domain of existence, and show that these wormholes satisfy a generalized Smarr relation. We demonstrate linear stability with respect to radial perturbations for a subset of these wormholes.