Journal of High Energy Physics

, 2019:153 | Cite as

Subleading soft theorem for arbitrary number of external soft photons and gravitons

  • Sayali Atul Bhatkar
  • Biswajit SahooEmail author
Open Access
Regular Article - Theoretical Physics


We obtain the subleading soft theorem for a generic theory of quantum gravity, for arbitrary number of soft photons and gravitons and for arbitrary number of finite energy particles with arbitrary mass and spin when all the soft particles are soft in the same rate. This result is valid at tree level for spacetime dimensions equal to four and five and to all loop orders in spacetime dimensions greater than five. We verify that in classical limit, low energy photon and graviton radiation decouple from each other.


Scattering Amplitudes Effective Field Theories String Field Theory 


Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.


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© The Author(s) 2019

Authors and Affiliations

  1. 1.Indian Institute of Science Education and ResearchPuneIndia
  2. 2.Harish-Chandra Research Institute, HBNIAllahabadIndia

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