论文标题

黑洞地平线的量子性质在重力波响起的含义

Implications of the quantum nature of the black hole horizon on the gravitational-wave ringdown

论文作者

Chakraborty, Sumanta, Maggio, Elisa, Mazumdar, Anupam, Pani, Paolo

论文摘要

通过捕获地平线尺度上推定的量子效应的动机,我们将黑洞地平线建模为膜,在高斯轮廓后具有波动。通过将膜范式扩展在半经典级别上,我们表明黑洞层的量子性质意味着部分反射边界条件和频率依赖性反射率。这通常会导致修改的准正常模式频谱,并在Postmerger信号中存在回声。同样,我们得出了一个可能起源于brane上的量子校正的Braneworld黑洞的地平线边界条件。这种情况还导致了改进的重力波响。我们讨论了这些发现的一般含义对预测地平线量表的量子校正的场景。

Motivated by capturing putative quantum effects at the horizon scale, we model the black hole horizon as a membrane with fluctuations following a Gaussian profile. By extending the membrane paradigm at the semiclassical level, we show that the quantum nature of the black hole horizon implies partially reflective boundary conditions and a frequency-dependent reflectivity. This generically results into a modified quasi-normal mode spectrum and the existence of echoes in the postmerger signal. On a similar note, we derive the horizon boundary condition for a braneworld black hole that could originate from quantum corrections on the brane. This scenario also leads to a modified gravitational-wave ringdown. We discuss general implications of these findings for scenarios predicting quantum corrections at the horizon scale.

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