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Gravitational Bremsstrahlung and Hidden Supersymmetry of Spinning Bodies

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Steinhoff,  Jan
Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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2106.10256.pdf
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Citation

Jakobsen, G. U., Mogull, G., Plefka, J., & Steinhoff, J. (in preparation). Gravitational Bremsstrahlung and Hidden Supersymmetry of Spinning Bodies.


Cite as: https://hdl.handle.net/21.11116/0000-0008-BBB1-D
Abstract
The recently established formalism of a worldline quantum field theory, which
describes the classical scattering of massive bodies in Einstein gravity, is
generalized up to quadratic order in spin -- for a pair of Kerr black holes
revealing a hidden ${\mathcal N}=2$ supersymmetry. The far-field time-domain
waveform of the gravitational waves produced in such a spinning encounter is
computed at leading order in the post-Minkowskian (weak field, but generic
velocity) expansion, and exhibits this supersymmetry. From the waveform we
extract the leading-order total radiated angular momentum in a generic
reference frame, and the total radiated energy in the center-of-mass frame to
leading order in a low-velocity approximation.