论文标题
高维重力中的渐近对称性和软定理
Asymptotic symmetries and soft theorems in higher-dimensional gravity
论文作者
论文摘要
软定理可以作为渐近对称性的病房身份重新铸造。我们审查了在任意范围内的领先和统一软重力定理的这种关系。虽然软定理被微不足道地概括到高于四个的尺寸，但渐近对称性的电荷受到需要重新规定的差异的困扰。我们认为，可以通过将软定理重写为病房身份来确定这些对称性的重新归一化指控。为了证明这种身份的电荷会产生渐近对称性，我们提出了公制场的某些组件之间的合适的换向关系
Soft theorems can be recast as Ward identities of asymptotic symmetries. We review such relation for the leading and subleading soft graviton theorems in arbitrary even dimensions. While soft theorems are trivially generalized to dimensions higher than four, the charges of asymptotic symmetries are plagued by divergences requiring a renormalization. We argue that the renormalized charges of these symmetries can be determined by rewriting soft theorems as Ward identities. In order to show that the charges of such identities generate asymptotic symmetries, we propose a suitable commutation relation among certain components of the metric fields
