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arXiv 0909.1675hep-th
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扭曲的咽喉的引力动力学

The gravitational dynamics of warped throats

Neil A. Butcher, Paul M. Saffin

摘要:

我们调查的时间演化,由于引力动力学的一个特定的时空中常用的膜宇宙学和弦紧化,即Klebanov-Strassler几何,这是通过增加一个扰动的静态解决方案的动量。我们观察这对时空的影响,并寻找黑洞形成或坍缩周期的证据,这可能导致奇异几何。循环通常在达到最小值后重新扩展,表明解对扰动的稳定性,扰动会改变其大小。然而,黑洞被观察到在某些扰动下形成,这可能会阻碍喉道稳定尖端的普遍使用。

英文摘要:

We investigate the time evolution due to gravitational dynamics of a particular spacetime commonly used in brane-cosmology and string compactifications, namely the Klebanov-Strassler geometry, which is achieved by adding a perturbation to the momentum of the static solution. We observe the effects this has on the spacetime and look for evidence of black hole formation or collapsing cycles which could lead to singular geometry. The cycles are seen to commonly re-expand after reaching a minimum value, showing the stability of the solution against perturbations which would change its size. However black holes are observed to form for certain perturbations, which could impede common uses of the throat's stable tip.

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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