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High Energy Physics - Theory, hep-th,General Relativity and Quantum Cosmology, gr-qc
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.
