Euclidean wormholes in string theory

Abstract

We show that toroidal compactification of type II string theory to six dimensions admits axionic euclidean wormhole solutions. These wormholes can be inserted into AdS 3 × S 3 × T 4 backgrounds, which have a well-defined CFT dual. AdS/CFT duality then suggests that the wormhole solutions cannot be interpreted using α parameters as originally suggested by Coleman. © SISSA 2007.