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arXiv 0902.0427hep-thgr-qc
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高维黑洞的世界体积有效理论

World-Volume Effective Theory for Higher-Dimensional Black Holes

Roberto Emparan, Troels Harmark, Vasilis Niarchos, Niels A. Obers

摘要:

我们认为,与四维黑洞相比,高维黑洞的新特性背后的主要特征是,它们的视界可以有两个大小完全不同的特征长度。我们开发了一个长距离的世界体积有效的理论,捕获的黑洞动态的尺度远大于短尺度。在这个极限下,黑洞被认为是一个黑褶:一个黑膜(可能是局部提升的),它的世界体积跨越时空的一个弯曲子流形。这种方法揭示了具有新的视界几何和拓扑结构的黑色物体,比黑色环更复杂,但更普遍的是,它为高维黑洞的动力学提供了一个新的组织框架。

英文摘要:

We argue that the main feature behind novel properties of higher-dimensional black holes, compared to four-dimensional ones, is that their horizons can have two characteristic lengths of very different size. We develop a long-distance worldvolume effective theory that captures the black hole dynamics at scales much larger than the short scale. In this limit the black hole is regarded as a blackfold: a black brane (possibly boosted locally) whose worldvolume spans a curved submanifold of the spacetime. This approach reveals black objects with novel horizon geometries and topologies more complex than the black ring, but more generally it provides a new organizing framework for the dynamics of higher-dimensional black holes.

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