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arXiv · 1812.01641

New dual gravitational charges

Hadi Godazgar·Mahdi Godazgar·C. N. Pope
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Abstract

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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Hadi Godazgar, Mahdi Godazgar, C. N. Pope. 2018-12-04. New dual gravitational charges. https://doi.org/10.1103/physrevd.99.024013

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