1/L2 corrected soft photon theorem from a CFT3 Ward identity

被引：13

作者：

Banerjee, Nabamita ^{[1
]}

Fernandes, Karan ^{[2
]}

Mitra, Arpita ^{[3
,4
]}

机构：

[1] Indian Inst Sci Educ & Res Bhopal, Bhopal Bypass Rd, Bhopal 420066, Madhya Pradesh, India

[2] Natl Taiwan Normal Univ, Ctr Astron & Gravitat, Taipei 11677, Taiwan

[3] Natl Ctr Theoret Sci, Phys Div, Taipei 10617, Taiwan

[4] Pohang Univ Sci & Technol, Dept Phys, Pohang 37673, South Korea

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2023年 / 2023卷 / 04期

关键词：

AdS-CFT Correspondence; Conformal and W Symmetry; Scattering Amplitudes;

D O I：

10.1007/JHEP04(2023)055

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：

Classical soft theorems applied to probe scattering processes on AdS(4) spacetimes predict the existence of perturbative 1/L-2 corrections to the soft photon and soft graviton factors of asymptotically flat spacetimes. In this paper, we establish that the 1/L-2 corrected soft photon theorem can be derived from a large N CFT3 Ward identity. We derive a perturbed soft photon mode operator on a flat spacetime patch in global AdS(4) in terms of an integrated expression of the boundary CFT current. Using the same in the CFT3 Ward identity, we recover the 1/L-2 corrected soft photon factor derived from classical soft theorems.

引用

页数：29

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