159 citations · 381 across the 30 of their papers we have counts for
20 papers · 1 filter
Transformation of mass-angular momentum aspect under BMS transformations
Po-Ning Chen, Mu-Tao Wang, Ye-Kai Wang +1
In this article, we present the definitive transformation formulae of the mass aspect and angular momentum aspect under BMS transformations. Two different approaches that lead to t…
Angular momentum and supertranslation in general relativity
Mu-Tao Wang
How does one measure the angular momentum carried away by gravitational radiation during the merger of a binary black hole? This has been a subtle issue since the 1960's due to the…
Cross-Section Continuity of Definitions of Angular Momentum
Po-Ning Chen, Daniel Paraizo, Robert M. Wald +3
We introduce a notion of "cross-section continuity" as a criterion for the viability of definitions of angular momentum, , at null infinity: If a sequence of cross-sections, ${\…
Conserved quantities in general relativity -- the view from null infinity
Po-Ning Chen, Mu-Tao Wang, Ye-Kai Wang +1
In general relativity, an idealized distant observer is situated at future null infinity where light rays emitted from the source approach. This article concerns conserved quantiti…
Supertranslation invariance of angular momentum at null infinity in double null gauge
Po-Ning Chen, Mu-Tao Wang, Ye-Kai Wang +1
The supertranslation invariance of the Chen-Wang-Yau (CWY) angular momentum in the Bondi-Sachs formalism/gauge was ascertained by the authors in \cite{CKWWY_evol, CWWY_atmp}. In th…
BMS charges without supertranslation ambiguity
Po-Ning Chen, Mu-Tao Wang, Ye-Kai Wang +1
The asymptotic symmetry of an isolated gravitating system, or the Bondi-Metzner-Sachs (BMS) group, contains an infinite-dimensional subgroup of supertranslations. Despite decades o…