论文标题
旋律非线性重力记忆效应
Subleading non linear gravitational memory effect
论文作者
论文摘要
我们将基于无效的大地测量学的新方法用于检测重力记忆，并在纽曼 - unti仪表范围内查找散装记忆。我们展示了如何在BMS电荷扩展的大$ r $扩展的转向订单中使用新发现的保守指控来定义非线性重力理论的每个顺序的重力记忆。我们还发现$ r $方向的重力转移。结果表明，$ 1/r $的纵向位移是Strominger和Zhiboedov得出的两个检测器之间的相对半径变化。
We apply the new method based on null geodesics for detecting gravitational memory and find the bulk memory in Newman-Unti gauge around the boundary of the conformally compactified space time. We show how we use the newly found conserved charges in the subleading orders of large-$r$ expansion of the BMS charges to define the gravitational memory at each order in the non-linearised gravitational theory. We also find the gravitational shift in the $r$ direction. It is shown that the longitudinal displacement at order $1/r$ is the relative radius change between two detectors derived by Strominger and Zhiboedov.
