Seminar series
Date
Tue, 11 Jun 2024
13:00
13:00
Location
TBA
Speaker
Massimo Porrati
Organisation
NYU
I will present a supertranslation-invariant and Lorentz-covariant definition of angular momentum in asymptotically flat 4D spacetime. This definition uses only asymptotic metric data and reproduces the flux necessary to obtain known radiation reaction effects. The formula has an appealing physical interpretation, it extends to Lorentz boost charges and integrated fluxes, and agrees with other existing definitions in appropriate reference frames.