From harmonic to Newman-Unti coordinates at the second post-Minkowskian order

Physical review. D/Physical review. D. 2026 Open access

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Authors: Pujian Mao, Baijun Zeng
DOI: 10.1103/wl8z-ctjn
Cited by: 0
References: 60

Abstract

In this paper, we present the complete transformations of a generic metric from (generalized) harmonic to Newman-Unti coordinates up to the second post-Minkowskian order $(G^2)$. This allows us to determine the asymptotic shear, the Bondi mass aspect, and the angular-momentum aspect at both orders.

Fields of Study & Subjects

Noncommutative and Quantum Gravity Theories Quantum and Classical Electrodynamics Cosmology and Gravitation Theories

Publication details

Journal / source
Physical review. D/Physical review. D.
Publisher
American Physical Society (APS)
Volume
113
Issue
4
Publication date
21 January 2026
Language
EN