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BMS charge algebra

delete2011-12-28
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OA
AI
G
Glenn Barnich *
T
Troessaert, Cedric
DOI:10.1007/JHEP12(2011)105delete
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摘要

摘要

En 中文
The surface charges associated with the symmetries of asymptotically flat four dimensional spacetimes at null infinity are constructed. They realize the symmetry algebra in general only up to a field-dependent central extension that satisfies a suitably generalized cocycle condition. This extension vanishes when using the globally well defined BMS algebra. For the Kerr black hole and the enlarged BMS algebra with both supertranslations and superrotations, some of the supertranslation charges diverge whereas there are no divergences for the superrotation charges. The central extension is proportional to the rotation parameter and involves divergent integrals on the sphere.
Keyword:
Gauge-gravity correspondence
Classical Theories of Gravity
Conformal and W Symmetry
Black Holes

期刊

Journal of High Energy Physics 封面图
Journal of High Energy Physics
IF:
5.5
论文数:
4.0W
被引数:
13.7W

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