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covariant amplitudes 1light-cone quantization 1perturbation theory 1scalar field theory 1wave functions 1

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hep-th2026

Extracting light-cone wave functions from covariant amplitudes: a detailed study in scalar field theory

Stéphane Munier, Stéphane Munier

The paper proposes a formula that converts covariant off‑shell amplitudes into light‑cone wave functions for scalar field theory, verifies it at one‑loop order, and shows it simpli…