arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1006.3497hep-th
收藏

一类无限维黑洞微态几何

An Infinite-Dimensional Family of Black-Hole Microstate Geometries

Iosif Bena, Nikolay Bobev, Stefano Giusto, Clement Ruef, Nicholas P. Warner

摘要:

我们构造了第一个明确的、光滑的、无水平黑洞微观态几何,它的模空间由一个任意的一元函数描述,因此是无限维的。这是通过在一个简单的D6反D6背景上构造标量格林函数来实现的,并使用该格林函数来获得在该背景下具有变化的电荷密度的超导管的完全反反应的解决方案。我们表明,这个supertube可以存储更多的熵比在平坦的空间,确认熵增强机制,使用膜探针预测。我们还表明,所有的局部性质的完全反反应的解决方案,事实上,可以得到使用DBI行动的一个适当的膜探针。特别是,超重力和DBI分析产生相同的功能气泡方程,控制中心的相对位置。这表明,当在模空间中移动时,存在一个非重整化定理来保护这些函数方程。我们的构造所创造的配置超出了最近的争论的范围,这些争论似乎对光滑超引力解中的熵施加了很大的限制。

英文摘要:

We construct the first explicit, smooth, horizonless black-hole microstate geometry whose moduli space is described by an arbitrary function of one variable and is thus infinite-dimensional. This is achieved by constructing the scalar Green function on a simple D6 anti-D6 background, and using this Green function to obtain the fully back-reacted solution for a supertube with varying charge density in this background. We show that this supertube can store parametrically more entropy than in flat space, confirming the entropy enhancement mechanism that was predicted using brane probes. We also show that all the local properties of the fully back-reacted solution can, in fact, be obtained using the DBI action of an appropriate brane probe. In particular, the supergravity and the DBI analysis yield identical functional bubble equations that govern the relative locations of the centers. This indicates that there is a non-renormalization theorem that protects these functional equations as one moves in moduli space. Our construction creates configurations that are beyond the scope of recent arguments that appear to put strong limits on the entropy that can be found in smooth supergravity solutions.

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。

↑