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arXiv 1307.6166gr-qcastro-ph.HEhep-th
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Einstein引力和纯Lovelock引力中的旋转黑洞

Rotating black hole in Einstein and pure Lovelock gravity

Naresh Dadhich, Sushant G. Ghosh

摘要:

我们利用两种独立的方法得到了高维Einstein引力和纯Lovelock引力的旋转黑洞度规。一种是基于类时运动有牛顿加速度而零运动无加速度的原理。另一种是著名的Newman-Janis算法,它通过复杂的变换将静态黑洞转化为旋转黑洞。结果表明,这两种方法给出的度规是相同的,即对于纯Lovelock度规,黑洞中的Einst是精确真空解,而对于纯Lovelock黑洞,Einst满足首阶真空方程.然而,它与众所周知的克尔黑洞共享所有的物理特性。

英文摘要:

We obtain rotating black hole metric for higher dimensional Einstein and pure Lovelock gravity by employing two independent and well motivated methods. One is based on the principle of incorporation of Newtonian acceleration for timelike motion while no acceleration for null motion. The other is the well known Newman-Janis alogrithm that converts a static black hole into a rotating one through a complex transformation. It turns out that both the methods give the same metric which for Einst of the eour pure Lovelock metricein black hole is an exact vacuum solution while for pure Lovelock black hole it satisfies the vacuum equation in the leading order. However it shares all the physical properties with the well known Kerr black hole.

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