标题： 从过去到未来零无穷的完全非线性引力波模拟 显示英文标题

标题： Fully non-linear gravitational wave simulations from past to future null-infinity

摘要： 我们首次展示了渐近平直时空的数值模拟，其计算域包括过去和未来的-null无穷远。 作为一个应用，我们探讨了引力波在黑洞时空中的散射。 这项研究是在完全非线性的情况下进行的，使用了Friedrich广义共形场方程的初边值问题公式。 我们计算了Bondi能量、Bondi新闻以及在过去和未来的-null无穷远处的引力信息，并讨论了它们之间的关系。 显示英文摘要

摘要： We present the first numerical simulations of asymptotically flat space-times whose computational domain includes past and future null-infinity. As an application, we explore the scattering of a gravitational wave in a black hole space-time. The study is conducted in the fully non-linear regime using an initial boundary value problem formulation of Friedrich's generalised conformal field equations. We calculate the Bondi energy, Bondi news and gravitational information at both past and future null-infinity and discuss their relationships.