论文标题
Cadabra和Python算法一般相对论和宇宙学II：引力波
Cadabra and Python algorithms in General Relativity and Cosmology II: Gravitational Waves
论文作者
论文摘要
Cadabra软件（例如CASS）的计算机代数系统（CASS）在物理和相关领域的各种研究活动中起着重要作用。我们展示了如何在良好的Python编程框架中轻松实施卡达布拉语言，具有出色的灵活性和自定义，以解决一般相对论中张量扰动的问题。我们获得了执行算法，以将张力量分解为指标的任何扰动顺序。通过讨论与第一/高阶重力波相关的研究活动中的一些具体计算问题来测试我们代码的特征。
Computer Algebra Systems (CASs) like Cadabra Software play a prominent role in a wide range of research activities in physics and related fields. We show how Cadabra language is easily implemented in the well established Python programming framework, gaining excellent flexibility and customization to address the issue of tensor perturbations in General Relativity. We obtain a performing algorithm to decompose tensorial quantities up to any perturbative order of the metric. The features of our code are tested by discussing some concrete computational issues in research activities related to first/higher-order gravitational waves.
