Würzburg 2018 – scientific programme

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MP: Fachverband Theoretische und Mathematische Grundlagen der Physik

MP 5: Quantum Field Theory I

MP 5.1: Invited Talk

Wednesday, March 21, 2018, 11:00–11:45, Z6 - SR 1.012

The Quantum sine-Gordon model in pAQFT — •Dorothea Bahns — Mathematisches Institut, Georg August Universität Göttingen, Germany

The sine-Gordon model in the ultraviolet finite regime is quantized in the framework of perturbative Algebraic Quantum Field Theory. It is shown that the resulting S-matrix, at first given as a formal power series, converges. The Haag-Kastler net of local von Neumann algebras is constructed, and its equivalence with the massive Thirring model is proved. In contrast to other authors, we do not add an auxiliary mass term, and we work completely in Lorentzian signature.

This is joint work with Klaus Fredenhagen (Hamburg) und Kasia Rejzner (York).