Anti-de-Sitter D-branes - Archive ouverte HAL
Article Dans Une Revue Journal of High Energy Physics Année : 2001

Anti-de-Sitter D-branes

Résumé

We study D-branes of the ${SL(2,\bR)}$ WZW model, and of its discrete orbifolds. Gluing the currents by group automorphisms leads to three types of D-branes: two-dimensional hyperbolic planes ($H_2$), de Sitter branes (dS$_2$), or anti-de-Sitter branes (AdS$_2$). We explain that the dS$_2$ branes are unphysical, because the electric field on their worldvolume is supercritical. By combining ${SL(2,\bR)}$ and SU(2), we exhibit a class of supersymmetric AdS$_2\times S^2$ three-brane worldvolumes, and consider their possible embeddings in the near-horizon region of stringy black holes. We point out the intriguing difference between the induced and the effective geometries of these D-branes, and speculate on its possible significance.

Dates et versions

hal-02301316 , version 1 (30-09-2019)

Identifiants

Citer

Constantin P. Bachas, Marios P. Petropoulos. Anti-de-Sitter D-branes. Journal of High Energy Physics, 2001, 02, pp.025-025. ⟨10.1088/1126-6708/2001/02/025⟩. ⟨hal-02301316⟩
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