论文标题
Kerr黑洞的近区域对称性
Near-Zone Symmetries of Kerr Black Holes
论文作者
论文摘要
我们研究了四维黑洞背景上无质量标量场的近区对称性。我们提供了一种几何理解，该理解将最近发现的各种对称性统一为SO（4,2）组的一部分。其中，一个子集是静态部门的确切对称性，并引起了负责消失的爱数字的阶梯对称性。在Kerr案例中，我们比较了文献中不同的近区近似值，并专注于保留静态极限对称性的实现。我们还描述了与自旋1和2扰动的关系。
We study the near-zone symmetries of a massless scalar field on four-dimensional black hole backgrounds. We provide a geometric understanding that unifies various recently discovered symmetries as part of an SO(4,2) group. Of these, a subset are exact symmetries of the static sector and give rise to the ladder symmetries responsible for the vanishing of Love numbers. In the Kerr case, we compare different near-zone approximations in the literature, and focus on the implementation that retains the symmetries of the static limit. We also describe the relation to spin-1 and 2 perturbations.
