23 citations · 169 across the 26 of their papers we have counts for
26 papers
On the angular momentum of compact binary coalescence
Xiaokai He, Xiaoning Wu, Naqing Xie
The supertranslation ambiguity issue of angular momentum is a long-standing problem in general relativity. Recently, there appeared the first definition of angular momentum at null…
From bending of light to positive mass: a non-PDE perspective
Xiaokai He, Xiaoning Wu, Naqing Xie
Penrose et al. investigated the physical incoherence of the spacetime with negative mass via the bending of light. Precise estimates of time-delay of null geodesics were needed and…
Quasi-local energy and Oppenheimer-Snyder collapse
Xiaokai He, Naqing Xie
We consider a scenario of the gravitational collapse of the Oppenheimer-Snyder dust cloud with spatially constant matter density. Given a closed two-surface within the star, three…
Hayward Quasilocal Energy of Tori
Xiaokai He, Naqing Xie
This paper is dedicated to the investigation of the positivity of the Hayward quasilocal energy of tori. Marginally trapped tori have nonnegative Hayward energy. We consider a scen…
On limit behavior of quasi-local mass for ellipsoids at spatial infinity
Xiaokai He, Leong-Fai Wong, Naqing Xie
We discuss the spatial limit of the quasi-local mass for certain ellipsoids in an asymptotically flat static spherically symmetric spacetime. These ellipsoids are not nearly round…
Bartnik mass via vacuum extensions
Pengzi Miao, Naqing Xie
We construct asymptotically flat, scalar flat extensions of Bartnik data , where is a metric of positive Gauss curvature on a two-sphere , and is a function t…