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arXiv 1402.4859gr-qcastro-ph.HEhep-th
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湍流黑洞

Turbulent Black Holes

Huan Yang, Aaron Zimmerman, Luis Lehner

摘要:

我们发现,快速旋转的黑洞可以显示湍流引力行为,这是由一种新的参数不稳定性介导的。这种不稳定性将能量从较高的时间和方位角空间频率转移到较低的频率-一种让人想起2+1维湍流流体所显示的逆能量级联的现象。我们的发现揭示了快速旋转的黑洞扰动的引力湍流路径,并提供了渐近平坦时空中引力湍流的第一个证据。有趣的是,这一发现预测可观察到的引力波签名等现象在黑洞二进制与高自旋,并给出了一个引力描述湍流相关的流体重力对偶。

英文摘要:

We show that rapidly-spinning black holes can display turbulent gravitational behavior which is mediated by a new type of parametric instability. This instability transfers energy from higher temporal and azimuthal spatial frequencies to lower frequencies--- a phenomenon reminiscent of the inverse energy cascade displayed by 2+1-dimensional turbulent fluids. Our finding reveals a path towards gravitational turbulence for perturbations of rapidly-spinning black holes, and provides the first evidence for gravitational turbulence in an asymptotically flat spacetime. Interestingly, this finding predicts observable gravitational wave signatures from such phenomena in black hole binaries with high spins and gives a gravitational description of turbulence relevant to the fluid-gravity duality.

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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