论文标题
从Reissner-NordströmSpacetime上经典散射的软因素
Soft factors from classical scattering on the Reissner-Nordström spacetime
论文作者
论文摘要
我们认为，$ 4 $尺寸的reissner-nordström时空的扰动是由点粒子的探针散射引起的，电荷和质量在无界轨迹上移动具有渐近较大的速度。由此产生的经典辐射溶液是引力和电磁体。我们使用这些经典溶液在树级上得出通用光子和重力软因子的贡献，它们的形式与文献相同。软因子表达式使我们能够研究较晚重力和电磁波形状中对记忆效应的尾巴贡献。我们发现，通常，电荷的贡献占主导地位的质量辐射。
We consider perturbations of the $4$ dimensional Reissner-Nordström spacetime induced by the probe scattering of a point particle with charge and mass moving on an unbound trajectory with an asymptotically large velocity. The resulting classical radiative solutions are the gravitational and electromagnetic bremmstrahlung. We use these classical solutions to derive the universal photon and graviton soft factor contributions at the tree level, which have the same form as noted in the literature. The soft factor expressions enable us to investigate the tail contribution to the memory effect in late time gravitational and electromagnetic waveforms. We find that generically, the contribution from the charge dominates that from the mass in the late time radiation.
