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arXiv · hep-th/0610117

Solution of the H3+ model on a disc

Kazuo Hosomichi·Sylvain Ribault
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Abstract

We determine all the correlators of the H3+ 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 H3+ 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,R), the open string states between two distinct parallel AdS2-branes belong to representations of the universal covering group.

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Kazuo Hosomichi, Sylvain Ribault. 2007-01-17. Solution of the H3+ model on a disc. https://doi.org/10.1088/1126-6708%2F2007%2F01%2F057

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