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Observables from the Spinning Eikonal

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arxiv 2312.09960 v2 pith:QMKCNXPU submitted 2023-12-15 hep-th gr-qc

Observables from the Spinning Eikonal

classification hep-th gr-qc
keywords eikonalobservablesspinningorderalgorithmamplitudesapproachesarises
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study the classical dynamics of spinning particles using scattering amplitudes and eikonal exponentiation. We show that observables are determined by a simple algorithm. A wealth of complexity arises in perturbation theory as positions, momenta and spins must be iteratively corrected at each order. Even though we restrict ourselves to one-loop computations at quadratic order in spin, nevertheless we encounter and resolve a number of subtle effects. Finally, we clarify the links between our work and various other eikonal approaches to spinning observables.

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Forward citations

Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

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    Authors define Kerr generating functions for all-loop scattering on Kerr black holes and apply them to compute leading non-linear tidal effects of neutron stars up to four loops in gravity.

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    hep-th 2026-05 unverdicted novelty 6.0

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