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Enhancement of Supersymmetry Near 5d Black Hole Horizon

Ali Chamseddine, Sergio Ferrara, Gary W. Gibbons, Renata Kallosh

hep-tharXiv:hep-th/9610155

Abstract

Geometric Killing spinors which exist on AdSp+2 X Sd-p-2 sometimes may be identified with supersymmetric Killing spinors. This explains the enhancement of unbroken supersymmetry near the p-brane horizon in d dimensions. The corresponding p-brane interpolates between two maximally supersymmetric vacua, at infinity and at the horizon. New case is studied here: p=0, d=5. The details of supersymmetric version of the very special geometry are presented. We find the area-entropy formula of the supersymmetric 5d black holes via the volume of S3 which depends on charges and intersection matrix.

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