Gravity seminar - Mu-Tao Wang Seminar
- Time:
- 12:00
- Date:
- 17听贵别产谤耻补谤测听2022
- Venue:
- Online seminar
For more information regarding this seminar, please email Fabian Gittins at F.W.R.Gittins@soton.ac.uk .
Event details
Title: Angular momentum in general relativity
Abstract:
The definition of angular momentum in general relativity has been a subtle issue since the 1960鈥檚, due to the discovery of
"supertranslation ambiguity鈥: the angular momentums recorded by two distant observers of the same system may not be the same.
In this talk, I shall show how the mathematical theory of optimal isometric embedding and quasilocal angular momentum identifies a correction term,
and leads to a new definition of angular momentum that is free of any supertranslation ambiguity.
This is based on joint work with Po-Ning Chen, Jordan Keller, Ye-Kai Wang, and Shing-Tung Yau.
Speaker information
Mu-Tao Wang , Columbia U..