Solution of the H+3 model on a disc
Journal
Journal of High Energy Physics
Journal Volume
2007
Journal Issue
1
Date Issued
2007
Abstract
We determine all the correlators of the H+3 model on a disc with AdS2-brane boundary conditions in terms of correlators of Liouville theory on a disc with FZZT-brane boundary conditions. We argue that the Cardy-Lewellen constraints are weaker in the H+3 model than in rational conformal field theories due to extra singularities of the correlators, but strong enough to uniquely determine the bulk two-point function on a disc. We confirm our results by detailed analyses of the bulk-boundary two-point function and of the boundary two-point function. In particular we find that, although the target space symmetry preserved by AdS2-branes is the group SL(2,), the open string states between two distinct parallel AdS 2-branes belong to representations of the universal covering group. © SISSA 2007.
Type
journal article