Iberian Strings Meetings 

19/01/2021, 09:00 — 10:00 — Online
Malcom Perry, DAMTP, Cambridge

Soft Charges, Soft Hair and Black Hole Entropy

Review lecture on Asymptotic symmetries in gravity.

I will describe the concept of soft charge emerging from the nature of the BMS group. An explicit construction of the supertranslation charges and their integrability will be presented together with arguments as to why this leads to conserved charges. I will extend this to other asymptotic charges. I will then explain how to construct soft black hole hair and show how it can be used to determine the Hawking black hole entropy through holography. I will conclude by looking at the implications for the information paradox.

See also

talk_malcolm_perry.pdf