Are there really any AdS₂ branes in the euclidean (or not) AdS₃?
classification
✦ hep-th
keywords
branesmodelwznweuclideananalyticalboundarycannotcase
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We do not find any AdS_2 branes, neither in the H_3^+ WZNW model nor the SL(2,R) WZNW model. We then reexamine the case of the branes that possess a su(2) symmetry: we speculate that they would have to live on the boundary of AdS_3. This cannot be realized in an euclidean spacetime, but in the SL(2,R) WZNW model by analytical continuation.
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