Are there really any AdS_2 branes in the euclidean (or not) AdS_3?

Details Are there really any AdS_2 branes in the euclidean (or not) AdS_3? Are there really any AdS_2 branes in the euclidean (or not) AdS_3?

2002-09-10

arxiv.org/abs/hep-th/0209084v2

Phys.Lett. B551 (2003) 173-177

Physics

High Energy Physics

High Energy Physics - Theory

7 pages; v2: more explanations

Scientific paper

10.1016/S0370-2693(02)03006-X

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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