Minimal spin deflection of Kerr-Newman and supersymmetric black hole

DOI10.1007/JHEP10(2021)011zbMATH Open1476.83077arXiv2106.12518OpenAlexW3203476514MaRDI QIDQ825622

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Publication date: 17 December 2021

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Abstract: Recent studies have shown that minimal couplings for massive spinning particles, which in the classical limit reproduce the leading PM Kerr black hole dynamics, leads to an Eikonal S-matrix exhibiting spin-entanglement suppression. In this paper we trace this phenomenon to the suppression of spin-flipping components in the S-matrix, known to be the hallmark of minimal coupling in the ultra-relativistic limit. We further generalize the consideration to charged and $mathcalN=4$ black holes, demonstrating that in both cases maximal suppression occurs at the extremal limit.

Full work available at URL: https://arxiv.org/abs/2106.12518

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