Soft theorems in curved spacetime

被引：8
作者：
Cheng, Peng [1 ,2 ,3 ]
Mao, Pujian [1 ,2 ]
机构：
[1] Tianjin Univ, Ctr Joint Quantum Studies, Sch Sci, 135 Yaguan Rd, Tianjin 300350, Peoples R China
[2] Tianjin Univ, Sch Sci, Dept Phys, 135 Yaguan Rd, Tianjin 300350, Peoples R China
[3] Lanzhou Univ, Lanzhou Ctr Theoret Phys, Key Lab Theoret Phys Gansu Prov, 222 South Tianshui Rd, Lanzhou 730000, Gansu, Peoples R China
来源：
PHYSICAL REVIEW D | 2022年 / 106卷 / 08期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1103/PhysRevD.106.L081702
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, we derive a soft photon theorem in the near horizon region of the Schwarzschild black hole from the Ward identity of the near horizon large gauge transformation. The flat spacetime soft photon theorem can be recovered as a limiting case of the curved spacetime. The soft photons on the horizon are indeed soft electric hairs. This accomplishes the triangle equivalence on the black hole horizon.
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页数：6
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