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arXiv · hep-th/9812073

Anti-de Sitter Fragmentation

Juan Maldacena·Jeremy Michelson·Andrew Strominger
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Abstract

Low-energy, near-horizon scaling limits of black holes which lead to string theory on AdS_2 x S^2 are described. Unlike the higher-dimensional cases, in the simplest approach all finite-energy excitations of AdS_2 x S^2 are suppressed. Surviving zero-energy configurations are described. These can include tree-like structures in which the AdS_2 x S^2 throat branches as the horizon is approached, as well as disconnected AdS_2 x S^2 universes. In principle, the black hole entropy counts the quantum ground states on the moduli space of such configurations. In a nonsupersymmetric context AdS_D for general D can be unstable against instanton-mediated fragmentation into disconnected universes. Several examples are given.

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Juan Maldacena, Jeremy Michelson, Andrew Strominger. 1998-12-09. Anti-de Sitter Fragmentation. https://doi.org/10.1088/1126-6708%2F1999%2F02%2F011

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