Quasi-local energy-momentum and energy flux at null infinity
Xiaoning Wu, Chiang-Mei Chen, James M. Nester
Abstract
The null infinity limit of the gravitational energy-momentum and energy flux determined by the covariant Hamiltonian quasi-local expressions is evaluated using the NP spin coefficients. The reference contribution is considered by three different embedding approaches. All of them give the expected Bondi energy and energy flux.
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