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arXiv 1302.3052gr-qc
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高维空间中的边缘外捕获面

Marginally outer trapped surfaces in higher dimensions

Tim-Torben Paetz, Walter Simon

摘要:

我们回顾了Kaluza-Klein理论的基本结构,即一个具有循环等距的5维真空,它对应于四维时空中的Einstein-Maxwell-Maxwell理论。我们首先回顾Killing视界及其生成元在束提升和投影下的行为。然后,我们表明,被(稳定)边缘捕获的紧凑的表面的属性被保存在升降机和投影提供适当的(“泡利”)保形标度用于时空度量。我们还讨论和比较最近证明的面积不等式稳定的轴对称的2维和3维边缘外捕获表面。

英文摘要:

We review the basic setup of Kaluza-Klein theory, namely a 5-dimensional vacuum with a cyclic isometry, which corresponds to Einstein-Maxwell-dilaton theory in 4-dimensional spacetime. We first recall the behaviour of Killing horizons and its generators under bundle lift and projection. We then show that the property of compact surfaces of being (stably) marginally trapped is preserved under lift and projection provided the appropriate ("Pauli-") conformal scaling is used for the spacetime metric. We also discuss and compare recently proven area inequalities for stable axially symmetric 2-dimensional and 3-dimensional marginally outer trapped surfaces.

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