Classical gravitational observables from quantum amplitude methods

15.03.2024 14:15 – 15:15

Leveraging modern amplitude techniques from quantum field theory, we present a novel approach to analytically evaluate classical gravitational observables. This framework, applied to the coalescence of compact binaries in the post-Minkowskian expansion, offers a fresh perspective on computational methods. It reformulates the scattering matrix (S-matrix) and reveals how classical gravity effects emerge from quantum scattering amplitudes.
Furthermore, the amplitude approach provides a natural framework to understand the intricacies of classical gravitational radiation across various regimes of relative velocity in two-body systems. This powerful setup extends beyond Einstein's gravity, paving the way for the exploration of effects arising from other effective field theories in two-body scattering observables.

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Bâtiment: Ecole de Physique

Auditoire Stuckelberg

entrée libre