On certain quasi-local spin-angular momentum expressions for large spheres near the null infinity
On certain quasi-local spin-angular momentum expressions for large spheres near the null infinity
The recently suggested quasi-local spin-angular momentum expressions, based on the Bramson superpotential and on the holomorphic or anti-holomorphic spinor fields, are calculated for large spheres near the future null infinity of asymptotically flat Einstein–Maxwell spacetimes. It is shown that although the expression based on the anti-holomorphic spinors is finite and …