Current trimester: Flavors of Amplitudes
Next trimester (spring): TQFT and Knot Theory, kickoff at IHP: 22.04.2026. More info soon, stay tuned!
Theoretical Physics
Haag-Ruelle scattering theory and the single-particle problem in the Wightman framework
byThomas Pochart
Abstract: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.