Yi-Jian Du, Bo Feng, Chih-Hao Fu, Yihong Wang
Published 2014-08-19Version 1
Recently, new soft graviton theorem proposed by Cachazo and Strominger has inspired a lot of works. In this note, we use the KLT-formula to investigate the theorem. We have shown how the soft behavior of color ordered Yang-Mills amplitudes can be combined with KLT relation to give the soft behavior of gravity amplitudes. As a byproduct, we find two nontrivial identities of the KLT momentum kernel must hold.
Linearized gravity and soft graviton theorem in de Sitter spacetime
Soft behavior of a closed massless state in superstring and universality in the soft behavior of the dilaton
Soft Graviton Theorem in Arbitrary Dimensions
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