Amplitude bootstrap (modern)

Layer 1 — Physicsin the quantum-gravity-phenomenology subtree

Bern-Dixon-Dunbar-Kosower 1990s / Britto-Cachazo-Feng-Witten 2005: scattering-amplitudes computed without Lagrangian via on-shell methods + recursion + analyticity. Foundation of modern S-matrix-bootstrap.

Related concepts

Matrix and determinant

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