Critical points of the Black-Hole potential for homogeneous special geometries

被引:37
作者
D'Auria, Riccardo [1 ]
Trigiante, Mario
Ferrara, Sergio
机构
[1] Politecn Torino, Dipartimento Fis, Cso Duca Abruzzi 24, I-10129 Turin, Italy
[2] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy
[3] CERN, Dept Phys, CH-1211 Geneva 23, Switzerland
[4] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
[5] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90024 USA
来源
JOURNAL OF HIGH ENERGY PHYSICS | 2007年 / 03期
关键词
black holes; supersymmetric effective theories;
D O I
10.1088/1126-6708/2007/03/097
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We extend the analysis of N=2 extremal Black-Hole attractor equations to the case of special geometries based on homogeneous coset spaces. For non-BPS critical points ( with non vanishing central charge) the (Bekenstein-Hawking) entropy formula is the same as for symmetric spaces, namely four times the square of the central charge evaluated at the critical point. For non homogeneous geometries the deviation from this formula is given in terms of geometrical data of special geometry in presence of a background symplectic charge vector.
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页数:18
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