Radiation eikonal for post-Minkowskian observables
High Energy Physics - Theory
2025-06-13 v2 General Relativity and Quantum Cosmology
Abstract
A recent proposal reinterprets the eikonal as the scattering generator, which computes scattering observables through an action as a symmetry generator. The aim of this study is to incorporate dissipative effects from radiation into this framework, where the eikonal is generalised to the radiation eikonal by including mediator field degrees of freedom. The proposed generalisation is tested through several post-Minkowskian scattering observables; scattering waveform, radiated momentum, and (time asymmetric) radiation loss in the impulse.
Cite
@article{arxiv.2501.07372,
title = {Radiation eikonal for post-Minkowskian observables},
author = {Jung-Wook Kim},
journal= {arXiv preprint arXiv:2501.07372},
year = {2025}
}
Comments
v2) expanded discussions on spin (footnote [59]) and added references. a new section "Motivating the radiation eikonal" and minor improvements for clarity. 8 pages, 4 figures; v1) 7 pages, 4 figures