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Title: Angular momentum at null infinity in five dimensions
Authors: Tanabe, Kentaro
Tanahashi, Norihiro
Shiromizu, Tetsuya
Author's alias: 田辺, 健太朗
Keywords: gravitational waves
space-time configurations
string theory
unified field theories
Issue Date: Mar-2011
Publisher: American Institute of Physics
Journal title: Journal of Mathematical Physics
Volume: 52
Issue: 3
Thesis number: 032501
Abstract: In this paper, using the Bondi coordinates, we discuss the angular momentum at null infinity in five dimensions and address the Poincare covariance of the Bondi mass and angular momentum. We also show the angular momentum loss/gain law due to gravitational waves. In four dimensions, the angular momentum at null infinity has the supertranslational ambiguity and then it is known that we cannot construct well-defined angular momentum there. On the other hand, we would stress that we can define angular momentum at null infinity without any ambiguity in higher dimensions. This is because of the nonexistence of supertranslations in higher dimensions.
Rights: © 2011 American Institute of Physics.
DOI(Published Version): 10.1063/1.3559917
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