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arXiv 0801.4910hep-th
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旋转黑洞标量的体发射

Bulk emission of scalars by a rotating black hole

M. Casals, S. R. Dolan, P. Kanti, E. Winstanley

摘要:

我们详细研究了由高维旋转黑洞发射到大体积中的标量场霍金辐射。我们数值计算的角度特征值,并解决径向运动方程,以找到传输因子。后者被发现被黑洞的角动量增强,并表现出众所周知的超辐射效应。相应的功率谱的标量场的维数的增强,在非旋转的情况下。我们计算了各种黑洞角动量和体积尺寸的黑洞的总质量损失率,并发现,在所有情况下,体发射仍然显着小于膜发射。角动量损失率也计算和发现有一个较小的值在散装比在膜上。我们提出了准确的散装膜排放比的一系列方案。

英文摘要:

We study in detail the scalar-field Hawking radiation emitted into the bulk by a higher-dimensional, rotating black hole. We numerically compute the angular eigenvalues, and solve the radial equation of motion in order to find transmission factors. The latter are found to be enhanced by the angular momentum of the black hole, and to exhibit the well-known effect of superradiance. The corresponding power spectra for scalar fields show an enhancement with the number of dimensions, as in the non-rotating case. We compute the total mass loss rate of the black hole for a variety of black-hole angular momenta and bulk dimensions, and find that, in all cases, the bulk emission remains significantly smaller than the brane emission. The angular-momentum loss rate is also computed and found to have a smaller value in the bulk than on the brane. We present accurate bulk-to-brane emission ratios for a range of scenarios.

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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