论文标题
Kerr指标中的散射角度
Scattering Angles in Kerr Metrics
论文作者
论文摘要
KERR指标中探针的散射角是用于在黑洞赤道平面散射的。我们使用一种自然恢复Kerr黑洞中所有订单的方法，从而促进了基于散射幅度或世界线计算的散射后的散射角度计算的比较。我们将这些结果扩展到将黑洞探针旋转到探针旋转中的二阶以及后米科夫斯基膨胀中的任何顺序，以使其与Kerr旋转对齐。当截断到第三次孟沃斯基秩序时，我们的结果与通过振幅和世界方法获得的结果一致。
Scattering angles for probes in Kerr metrics are derived for scattering in the equatorial plane of the black hole. We use a method that naturally resums all orders in the spin of the Kerr black hole, thus facilitating comparisons with scattering-angle computations based on the Post-Minkowskian expansion from scattering amplitudes or worldline calculations. We extend these results to spinning black-hole probes up to and including second order in the probe spin and any order in the Post- Minkowskian expansion, for probe spins aligned with the Kerr spin. When truncating to third Post-Minkowskian order, our results agree with those obtained by amplitude and worldline methods.
