Kerr-Newman stress-tensor from minimal coupling
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Publication:2660247
DOI10.1007/JHEP12(2020)103zbMATH Open1457.83029arXiv1911.12775OpenAlexW3112649290MaRDI QIDQ2660247
Author name not available (Why is that?)
Publication date: 29 March 2021
Published in: (Search for Journal in Brave)
Abstract: In this paper, we demonstrate that at leading order in post Minkowskian (PM) expansion, the stress-energy tensor of Kerr-Newman can be recovered to all orders in spin from three sets of minimal coupling: the electric and gravitational minimal coupling for higher-spin particles, and the "minimal coupling" for massive spin-2 decay. These couplings are uniquely defined from kinematic consideration alone. This is shown by extracting the classical piece of the one-loop stress-energy tensor form factor, which we provide a basis that is valid to all orders in spin. The 1 PM stress tensor, and the metric in the harmonic gauge, is then recovered from the classical spin limit of the form factor.
Full work available at URL: https://arxiv.org/abs/1911.12775
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