论文标题
用重力波探测黑洞的新物理
Probing new physics on the horizon of black holes with gravitational waves
论文作者
论文摘要
黑洞是宇宙中最紧凑的对象。根据一般相对论，黑洞的地平线掩盖了爱因斯坦理论分解的奇异性。最近，引力波开辟了探测视野存在并研究紧凑物体的性质的可能性。鉴于某些量子重力模型可以预测地平线和无奇异性的紧凑物体的存在，这是特别感兴趣的。这种外来的紧凑物体可以相对于黑洞外壳发出不同的重力波信号。在本论文中，我们分析了无水平紧凑物体的稳定性，并得出一个通用框架来计算其特征振荡频率。我们提供了一个分析性的，物理动机的模板，以搜索这些物体在后期后信号中发出的引力波回波。最后，我们推断出未来重力波检测器可观察到的极端质量比率如何允许对黑洞范式的模型无关测试。
Black holes are the most compact objects in the Universe. According to general relativity, black holes have a horizon that hides a singularity where Einstein's theory breaks down. Recently, gravitational waves opened the possibility to probe the existence of horizons and investigate the nature of compact objects. This is of particular interest given some quantum-gravity models which predict the presence of horizonless and singularity-free compact objects. Such exotic compact objects can emit a different gravitational-wave signal relative to the black hole case. In this thesis, we analyze the stability of horizonless compact objects, and derive a generic framework to compute their characteristic oscillation frequencies. We provide an analytical, physically-motivated template to search for the gravitational-wave echoes emitted by these objects in the late-time postmerger signal. Finally, we infer how extreme mass-ratio inspirals observable by future gravitational-wave detectors will allow for model-independent tests of the black hole paradigm.
