论文标题
地平线的T-witts
T-Witts from the horizon
论文作者
论文摘要
使用共同旋转的Kruskal-Israel样坐标，我们研究了相关的表面电荷，它们的对称性和爱因斯坦重力内的相应相位空间。我们的表面电荷一般不可集成。它们的集成部分生成一个代数，包括超级移动和我们配音为“ T-Witt代数”的BMS_3型代数。不可汇总的部分解释了通过空发出表面的通量。我们将结果放在近地平线对称性，柔软的头发和程序的早期结构中，以半经典地识别Kerr黑洞的微杆菌。
Expanding around null hypersurfaces, such as generic Kerr black hole horizons, using co-rotating Kruskal-Israel-like coordinates we study the associated surface charges, their symmetries and the corresponding phase space within Einstein gravity. Our surface charges are not integrable in general. Their integrable part generates an algebra including superrotations and a BMS_3-type algebra that we dub "T-Witt algebra". The non-integrable part accounts for the flux passing through the null hypersurface. We put our results in the context of earlier constructions of near horizon symmetries, soft hair and of the program to semi-classically identify Kerr black hole microstates.
