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arXiv 1306.4318gr-qc
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高维旋转黑洞的非轴对称不稳定性

Non-Axisymmetric Instability of Rotating Black Holes in Higher Dimensions

Gavin S. Hartnett, Jorge E. Santos

摘要:

计算了奇数维等角动量Myers-Perry黑洞的标量引力准正规模。我们发现了$D \ge 7$的一种新的棒模(非轴对称)经典不稳定性。这些黑洞以前被发现是不稳定的轴对称扰动的自旋非常接近极端。我们发现的棒模不稳定性在旋转速度慢得多的情况下发生,因此是这些黑洞的主要不稳定性。这种不稳定性对更高维度的黑洞的相图有重要的影响。

英文摘要:

We calculate the scalar-gravitational quasi-normal modes of equal angular momenta Myers-Perry black holes in odd dimensions. We find a new bar-mode (non-axisymmetric) classical instability for $D \ge 7$. These black holes were previously found to be unstable to axisymmetric perturbations for spins very near extremality. The bar-mode instability we find sets in at much slower spins, and is therefore the dominant instability of these black holes. This instability has important consequences for the phase diagram of black holes in higher dimensions.

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