标题： 引力波中动力场与辅助场的对比 显示英文标题

标题： Dynamical vs. Auxiliary Fields in Gravitational Waves around a Black Hole

摘要： 辅助/动态解耦方法 hep-th/0609001 适用于任何共齐次 1 背景的扰动（如球对称时空或均匀宇宙学）。 在这里，该方法用于计算任意维数中史瓦西黑洞周围的扰动。 该方法为母方程的存在提供了清晰的见解。 计算过程直接明了，与 Regge-Wheeler、Zerilli 和 Kodama-Ishibashi 的先前结果一致，但不需要在变量定义或规范固定方面有任何巧妙之处。 我们注意到，该方法产生的母场与标准场是共轭的。 此外，我们的作用量方法得到了辅助部分。 显示英文摘要

摘要： The auxiliary/dynamic decoupling method of hep-th/0609001 applies to perturbations of any co-homogeneity 1 background (such as a spherically symmetric space-time or a homogeneous cosmology). Here it is applied to compute the perturbations around a Schwarzschild black hole in an arbitrary dimension. The method provides a clear insight for the existence of master equations. The computation is straightforward, coincides with previous results of Regge-Wheeler, Zerilli and Kodama-Ishibashi but does not require any ingenuity in either the definition of variables or in fixing the gauge. We note that the method's emergent master fields are canonically conjugate to the standard ones. In addition, our action approach yields the auxiliary sectors.