Double Soft Theorem for Perturbative Gravity

Abstract

Following up on the recent work of Cachazo, He and Yuan \cite{arXiv:1503.04816 [hep-th]}, we derive the double soft graviton theorem in perturbative gravity. We show that the double soft theorem derived using CHY formula precisely matches with the perturbative computation involving Feynman diagrams. In particular, we find how certain delicate limits of Feynman diagrams play an important role in obtaining this equivalence.

14 pages, 8 figures, references added, matches published version

References in corpus (3)

• New symmetries for the Gravitational S-matrix
• Loop Corrections to Soft Theorems in Gauge Theories and Gravity
• Subleading soft theorem in arbitrary dimension from scattering equations

Cited by in corpus (3)

• Sub-subleading Soft Graviton Theorem in Generic Theories of Quantum Gravity
• Subleading Soft Theorem for Multiple Soft Gravitons
• Collinear limits beyond the leading order from the scattering equations