New dual gravitational charges
New dual gravitational charges
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DOI：
10.1103/physrevd.99.024013
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发表时间：
2018-12
影响因子：
5
通讯作者：
H. Godazgar;M. Godazgar;C. Pope
中科院分区：
文献类型：
--
作者：
H. Godazgar;M. Godazgar;C. Pope
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 $\psi_2$. 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.
