Interaction picture in QFT and Haag's theorem
Friday, July 11, 2014
We will discuss on interaction picture in quantum field theory and how Haag's theorem proves that this approach cannot be used to describe interacting fields. To do so, a brief introduction on algebraic quantum field theory is necessary. More or less, the main topics we will see are: C*-algebra, GNS theorem, Fock and Non-Fock representation, locality, Weyl representation, Haag's theorem
- "Symmetry Breaking", F. Strocchi; - "Operator Algebras and Quantum Statistical Mechanics", vol.1, O. Bratteli, D.W. Robinson; -"Algebraic Methods in Statistical Mechanics and Quantum Fields Theory", G.G. Emch.