Null infinity, the BMS group and infrared issues

Abhay Ashtekar, Miguel Campiglia, Alok Laddha

Research output: Contribution to journalArticlepeer-review

76 Scopus citations


There has been a recent resurgence of interest in the structure of the gravitational field at null infinity, sparked by new results on soft charges and infrared issues related to the S matrix theory in perturbative quantum gravity. We summarize these developments and put them in the broader context of research in the relativity community that dates back to several decades. In keeping with intent of this series, this overview is addressed to gravitational scientists who are not experts in this specific area.

Original languageEnglish (US)
Article number140
JournalGeneral Relativity and Gravitation
Issue number11
StatePublished - Nov 1 2018

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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