Haag-Ruelle Scattering Theory and the Single-Particle Problem in the Wightman Framework

par Thomas Pochart (CPhT, École polytechnique)

mercredi 4 mars 2026, 11:45 → 12:45 Europe/Paris

Amphithéâtre Léon Motchane (IHES)

Seed Seminar of Mathematics and Physics

Winter '26: Flavors of Amplitudes 

In this presentation, I will first review what purposes axiomatic quantum field theory serves and what the Wightman framework is and achieves. With that being done, I will address the question of the existence of the S-matrix in this framework, following a modern and dimension-independent approach to the Haag--Ruelle scattering; in doing so, I will put a special emphasis on the single-particle problem. With all this discussion having taken place in flat space, I will conclude by presenting some ongoing work on an AdS space version of these arguments.

 

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