Soft theorems in de Sitter spacetime

被引：2
作者：
Mao, Pujian [1 ]
Zhang, Kai-Yu [1 ]
机构：
[1] Tianjin Univ, Ctr Joint Quantum Studies, Sch Sci, 135 Yaguan Rd, Tianjin 300350, Peoples R China
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2024年 / 2024卷 / 01期
基金：
中国国家自然科学基金;
关键词：
de Sitter space; Gauge Symmetry; Scattering Amplitudes;
D O I：
10.1007/JHEP01(2024)044
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
In this paper, we derive a soft photon theorem and a soft gluon theorem in the de Sitter spacetime from the Ward identity of the near cosmological horizon large gauge transformation. Taking the flat limit of the de Sitter spacetime, the soft theorems naturally recover the corresponding flat spacetime soft theorems.
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页数：18
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