2007/07/21 by Aaron Bergman, Bergman, Aaron, Jacques Distler +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #hep-th
paper · pdf · doi:10.48550/arxiv.0707.3168
10 pages, LaTeX2e with utarticle.cls
arxiv created 2007/07/21 · arxiv updated 2009/12/01
In this brief note, we reconsider the problem of finding Euclidean wormhole solutions to maximal supergravity in d dimensions. We find that such solutions exists for all d less than or equal to 9. However, we argue that, in toroidally-compactified string theories, these saddle points never contribute to the path integral because of a tension with U-duality.