Multi - Black - Holes in 3 D and 4 D anti - de Sitter Spacetimes
نویسنده
چکیده
The (single) black hole solutions of Bañados, Teitelboim and Zanelli (BTZ) in 2+1 dimensional anti-de Sitter space are generalized to an arbitrary number n of such black holes. The resulting multi-black-hole (MBH) spacetime is locally isometric to anti-de Sitter space, and globally it is obtained from the latter as a quotient space by means of suitable identifications. The MBH spacetime has n asymptotically anti-de Sitter exterior regions, each of which has the geometry of a single BTZ black hole. These exterior regions are separated by n horizons from a common interior region. This interior region can be described as a “closed” universe containing n black holes. Similar configurations in 3+1 dimensions, with horizons of toroidal and higher genus topologies, are also presented.
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