Symmetries of celestial amplitudes

被引:90
作者
Stieberger, Stephan [1 ]
Taylor, Tomasz R. [2 ]
机构
[1] Max Planck Inst Phys & Astrophys, Werner Heisenberg Inst, D-80805 Munich, Germany
[2] Northeastern Univ, Dept Phys, Boston, MA 02115 USA
基金
美国国家科学基金会;
关键词
D O I
10.1016/j.physletb.2019.03.063
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Celestial amplitudes provide holographic imprints of four-dimensional scattering processes in terms of conformal correlation functions on a two-dimensional sphere describing Minkowski space at null infinity. We construct the generators of Poincare and conformal groups in the celestial representation and discuss how these symmetries are manifest in the amplitudes. (C) 2019 The Author(s). Published by Elsevier B.V.
引用
收藏
页码:141 / 143
页数:3
相关论文
共 14 条
[1]   New relations for gauge-theory amplitudes [J].
Bern, Z. ;
Carrasco, J. J. M. ;
Johansson, H. .
PHYSICAL REVIEW D, 2008, 78 (08)
[2]   4D scattering amplitudes and asymptotic symmetries from 2D CFT [J].
Cheung, Clifford ;
de la Fuente, Anton ;
Sundrum, Raman .
JOURNAL OF HIGH ENERGY PHYSICS, 2017, (01)
[3]  
Francesco P. D., 1997, CONFORMAL FIELD
[4]  
HIMWICH E, ARXIV190101622HEPTH
[5]   Low's Subleading Soft Theorem as a Symmetry of QED [J].
Lysov, Vyacheslav ;
Pasterski, Sabrina ;
Strominger, Andrew .
PHYSICAL REVIEW LETTERS, 2014, 113 (11)
[6]   Gluon amplitudes as 2d conformal correlators [J].
Pasterski, Sabrina ;
Shao, Shu-Heng ;
Strominger, Andrew .
PHYSICAL REVIEW D, 2017, 96 (08)
[7]   Conformal basis for flat space amplitudes [J].
Pasterski, Sabrina ;
Shao, Shu-Heng .
PHYSICAL REVIEW D, 2017, 96 (06)
[8]  
Schlotterer O., 2016, JHEP, V1611, P074
[9]   Tree-level gluon amplitudes on the celestial sphere [J].
Schreiber, Anders O. ;
Volovich, Anastasia ;
Zlotnikov, Michael .
PHYSICS LETTERS B, 2018, 781 :349-357
[10]   Strings on celestial sphere [J].
Stieberger, Stephan ;
Taylor, Tomasz R. .
NUCLEAR PHYSICS B, 2018, 935 :388-411