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arXiv 0905.3739hep-th
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SAM关于d=4扩展超引力中极端黑洞的讲座

SAM Lectures on Extremal Black Holes in d=4 Extended Supergravity

S. Bellucci, S. Ferrara, M. Gunaydin, A. Marrani

摘要:

本文报道了N=2,d=4非规范Maxwell-Einstein超引力中极端黑洞吸引子的研究结果。对于齐次对称标量流形,讨论了三种一般的具有非零Bekenstein-Hawking熵的吸引子解。它们对应于电荷矢量的三个(不等价的)轨道类,它们位于U-对偶群的相关辛表示R_{V}中。除了1/2-BPS电荷轨道外,还有两类不同的非BPS电荷轨道,其中一类的中心荷为零。完整的分类的U-对偶轨道,以及模空间的非BPS吸引子(跨越标量不稳定的黑洞事件视界),也进行了审查。最后,我们考虑了N>2-扩展的d=4的无规范超引力的类似分类,其中1/N-BPS吸引子也产生一个相关的模空间。

英文摘要:

We report on recent results in the study of extremal black hole attractors in N=2, d=4 ungauged Maxwell-Einstein supergravities. For homogeneous symmetric scalar manifolds, the three general classes of attractor solutions with non-vanishing Bekenstein-Hawking entropy are discussed. They correspond to three (inequivalent) classes of orbits of the charge vector, which sits in the relevant symplectic representation R_{V} of the U-duality group. Other than the 1/2-BPS one, there are two other distinct non-BPS classes of charge orbits, one of which has vanishing central charge. The complete classification of the U-duality orbits, as well as of the moduli spaces of non-BPS attractors (spanned by the scalars which are not stabilized at the black hole event horizon), is also reviewed. Finally, we consider the analogous classification for N>2-extended, d=4 ungauged supergravities, in which also the 1/N-BPS attractors yield a related moduli space.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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