Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-10-09
JHEP 0712:093,2007
Physics
High Energy Physics
High Energy Physics - Theory
50 pages, 4 figures; v2: Reference added. To appear in JHEP
Scientific paper
10.1088/1126-6708/2007/12/093
We derive extremal black hole solutions for a variety of four dimensional models which, after Kaluza-Klein reduction, admit a description in terms of 3D gravity coupled to a sigma model with symmetric target space. The solutions are in correspondence with certain nilpotent generators of the isometry group. In particular, we provide the exact solution for a non-BPS black hole with generic charges and asymptotic moduli in N=2 supergravity coupled to one vector multiplet. Multi-centered solutions can also be generated with this technique. It is shown that the non-supersymmetric solutions lack the intricate moduli space of bound configurations that are typical of the supersymmetric case.
Gaiotto Davide
Li Wangrong
Padi Megha
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