Black hole pairs and supergravity domain walls

Details Black hole pairs and supergravity domain walls Black hole pairs and supergravity domain walls

1996-12-02

arxiv.org/abs/hep-th/9612014v2

Phys.Rev. D57 (1998) 3529-3536

Physics

High Energy Physics

High Energy Physics - Theory

21 pages LaTeX, special style files (psfrag.sty, efsf_psfrag.sty, a4local.sty, epsf.tex), minor revisions and amended referenc

Scientific paper

10.1103/PhysRevD.57.3529

We examine the pair creation of black holes in the presence of supergravity domain walls with broken and unbroken supersymmetry. We show that black holes will be nucleated in the presence of non- extreme, repulsive walls which break the supersymmetry, but that as one allows the parameter measuring deviation from extremality to approach zero the rate of creation will be suppressed. In particular, we show that the probability for creation of black holes in the presence of an extreme domain wall is identically zero, even though an extreme vacuum domain wall still has repulsive gravitational energy. This is consistent with the fact that the supersymmetric, extreme domain wall configurations are BPS states and should be stable against quantum corrections. We discuss how these walls arise in string theory, and speculate about what string theory might tell us about such objects.

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