论文标题
数值相对论简介
Introduction to Numerical Relativity
论文作者
论文摘要
数值相对论是一个多学科领域，包括相对论，磁性流动力学，天体物理学和计算方法等，目的是解决在数值高度逐渐高，强烈的重力场景上，没有其他近似值。在这里，我们描述了该领域的一些基础，从协方差的爱因斯坦方程开始，以及如何将它们作为良好的进化方程式编写，讨论了当今通常采用的不同形式主义，坐标条件和数值方法，用于重力波源建模。
Numerical Relativity is a multidisciplinary field including relativity, magneto-hydrodynamics, astrophysics and computational methods, among others, with the aim of solving numerically highly-dynamical, strong-gravity scenarios where no other approximations are available. Here we describe some of the foundations of the field, starting from the covariant Einstein equations and how to write them as a well-posed system of evolution equations, discussing the different formalisms, coordinate conditions and numerical methods commonly employed nowadays for the modeling of gravitational wave sources.
