论文标题
幽灵的无限无限衍生物重力中的冲动波动抗DE保姆时空
Impulsive waves in ghost free infinite derivative gravity in anti-de Sitter spacetime
论文作者
论文摘要
我们研究了在无鬼无限衍生引力的背景下，在抗DE保姆时空传播的精确冲动引力波。我们表明，除了爱因斯坦的一般相对论之外，无源理论不接受任何ADS波解决方案。在来源存在的情况下，情况大不相同。我们构建了由四个和三个维度的无限粒子和线性来源产生的无限衍生物重力的脉冲波解。与源位置的分布曲率相对应的奇异性被非本地性涂抹。所获得的解决方案无处不在。它们减少到红外策略中一般相对论的相应解决方案，并处于局部限制。
We study exact impulsive gravitational waves propagating in anti-de Sitter spacetime in the context of the ghost free infinite derivative gravity. We show that the source-free theory does not admit any AdS wave solutions other than that of Einstein's general relativity. The situation is significantly different in the presence of sources. We construct impulsive-wave solutions of the infinite derivative gravity generated by massless particles and linear sources in four and three dimensions. The singularities corresponding to distributional curvature at the locations of the sources get smeared by the non-localities. The obtained solutions are regular everywhere. They reduce to the corresponding solutions of general relativity in the infrared regime and in the local limit.
