Black Holes and Critical Points in Moduli Space

Details Black Holes and Critical Points in Moduli Space Black Holes and Critical Points in Moduli Space

1997-02-13

arxiv.org/abs/hep-th/9702103v1

Nucl.Phys.B500:75-93,1997

Physics

High Energy Physics

High Energy Physics - Theory

19 pages, Latex

Scientific paper

10.1016/S0550-3213(97)00324-6

We study the stabilization of scalars near a supersymmetric black hole horizon using the equation of motion of a particle moving in a potential and background metric. When the relevant 4-dimensional theory is described by special geometry, the generic properties of the critical points of this potential can be studied. We find that the extremal value of the central charge provides the minimal value of the BPS mass and of the potential under the condition that the moduli space metric is positive at the critical point. We relate these ideas to the Weinhold and Ruppeiner metrics introduced in the geometric approach to thermodynamics and used for study of critical phenomena.

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