带有和乐修正的非奇异球对称黑洞有效模型的准正规模式
Quasinormal modes of a nonsingular spherically symmetric black hole effective model with holonomy corrections
AI总结：
本文计算了基于圈量子引力修正的非奇异球对称黑洞有效模型的无质量自旋微扰准正规模式，发现标量微扰轨迹在复平面呈螺旋自相交，并分析了引力微扰的泛频行为及等谱性违反程度。
摘要：
我们计算了带有和乐修正的非奇异球对称黑洞有效模型的准正规模式。该模型基于受圈量子引力启发的量子修正。它是协变的，并产生一个处处正则的时空，具有一个依赖参数的黑洞反弹。这些黑洞由于无质量标量场和电磁场引起的微扰先前已被计算，并观察到了一些有趣的结果。对于某些模式，发现频率与最小半径参数的轨迹在复平面上呈螺旋形并自相交。此外，泛频的频谱具有实频率，该实频率随泛频数的增加而振荡，甚至可能对某些泛频消失。我们计算了所有无质量自旋微扰的准正规模式，包括自旋1/2，以及轴向和极化引力微扰。我们发现轨迹螺旋仅限于标量微扰，并观察到引力微扰的一些有趣的泛频行为。还检查了引力准正规模式谱中等谱性违反的程度。
英文摘要：
We calculate the quasinormal modes of a nonsingular spherically symmetric black hole effective model with holonomy corrections. The model is based on quantum corrections inspired by loop quantum gravity. It is covariant and results in a spacetime that is regular everywhere with a parameter-dependent black bounce. Perturbations of these black holes due to massless scalar and electromagnetic fields have been previously calculated and some intriguing results were observed. For some modes, the frequency versus minimum-radius parameter trajectories were found to spiral and self-intersect in the complex plane. In addition, the spectrum of overtones has real frequencies that oscillate with increasing overtone number, and may even vanish for some overtones. We have calculated the quasinormal modes for all massless spin perturbations, including spin-1/2, and axial- and polar-gravitational. We find that the trajectory-spirals are restricted to scalar perturbations and observe some interesting overtone behaviour for gravitational perturbations. The amount of isospectrality violation in the gravitational quasinormal mode spectra is also examined.
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