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arxiv: 1812.01641 · v1 · submitted 2018-12-04 · ✦ hep-th · gr-qc

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New dual gravitational charges

Hadi Godazgar , Mahdi Godazgar , C.N. Pope
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classification ✦ hep-th gr-qc
keywords chargessupertranslationargueasymptoticbarnich-brandtbonacorrespondcorresponding
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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.

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