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Radiation eikonal for post-Minkowskian observables
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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.
Forward citations
Cited by 4 Pith papers
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First Look at Quartic-in-Spin Binary Dynamics at Third Post-Minkowskian Order
The O(G^3) conservative and radiation-reaction classical observables for spinning black-hole scattering are extended to quartic order in spin, with all-order-in-spin radiation reaction beyond the aligned-spin limit.
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The Magnusian generator for dissipative systems and application to leading 2.5PN radiation-reaction dynamics
The Magnusian is generalized via the in-in formalism to dissipative and nonlocal dynamics, yielding an explicit one-period generator for Newtonian binaries with 2.5PN radiation reaction that agrees with numerics.
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Classical eikonal in relativistic scattering
A classical interaction picture defines the classical eikonal directly in classical mechanics and yields all-order eikonal formulas for relativistic probes in EM and gravitational backgrounds.
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Manifest symplecticity in classical scattering
The on-shell action and the exponential scattering generator differ as functions, but the on-shell action of the true Hamiltonian equals the on-shell action of the generator treated as a unit-time effective Hamiltonian.
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