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arXiv 1812.01641hep-thgr-qc
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新的对偶引力荷

New dual gravitational charges

Hadi Godazgar, Mahdi Godazgar, C. N. Pope

摘要:

我们表明,有一个进一步的无限数量的,以前未知的,超平移收费。这些可以被看作是已知的BMS电荷对应于超平移。在Newman-Penrose语言中,这些新的超平移荷大致对应于$ψ_2$中前导项的虚部。我们发现这些费用的二元化的Barnich-Brandt渐近收费,并认为,这个处方引起新的真正的收费在零无限。

英文摘要:

We show that there are a further infinite number of, previously unknown, supertranslation charges. These can be viewed as duals of the known BMS charges corresponding to supertranslations. In Newman-Penrose language, these new supertranslation charges roughly correspond to the imaginary part of the leading term in $ψ_2$. We find these charges by dualising the Barnich-Brandt asymptotic charges and argue that this prescription gives rise to new bona fide charges at null infinity.

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