Supersymmetric AdS4 black holes and attractors
Supersymmetric AdS4 black holes and attractors
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超对称 AdS4 黑洞和吸引子
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
D. Klemm
中科院分区：
文献类型：
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作者：
S. Cacciatori;D. Klemm
利用arXiv：0804.0009中给出的一般方法，对所有与阿贝尔向量多重态耦合的规范超引力系统的类时超对称解进行了分类，构造了AdS 4中第一个具有非常数标量场的超对称黑洞.这是针对预电位的各种选择，其中包括STU模型。这些解决方案允许研究的BPS吸引流在AdS。我们还确定了最一般的超对称静态近视界几何，得到了规范超引力下的吸引子方程。作为一般特征，我们发现黑洞势中存在平坦方向，即，一般地，视界上的模的值不完全由电荷指定。对于所考虑的前势之一，由此产生的模空间被明确地确定。尽管如此，在所有情况下，我们发现黑洞熵只取决于电荷，与吸引子机制一致。
Using the general recipe given in arXiv:0804.0009, where all timelike supersymmetric solutions of $ mathcal{N} = 2 $, D = 4 gauged supergravity coupled to abelian vector multiplets were classified, we construct the first examples of genuine supersymmetric black holes in AdS4 with nonconstant scalar fields. This is done for various choices of the prepotential, amongst others for the STU model. These solutions permit to study the BPS attractor flow in AdS. We also determine the most general supersymmetric static near-horizon geometry and obtain the attractor equations in gauged supergravity. As a general feature we find the presence of flat directions in the black hole potential, i.e., generically the values of the moduli on the horizon are not completely specified by the charges. For one of the considered prepotentials, the resulting moduli space is determined explicitely. Still, in all cases, we find that the black hole entropy depends only on the charges, in agreement with the attractor mechanism.