Operator product expansions as a consequence of phase space properties
The paper presents a model-independent, nonperturbative proof of operator product expansions in quantum field theory. As an input, a recently proposed phase space condition is used that allows a precise description of point field structures. Based on the product expansions, we also define and analyze normal products (in the sense of Zimmermann).
Journal of Mathematical Physics
- Pub Date:
- August 2005
- Field theory;
- Mathematical Physics;
- v3: minor wording changes, as to appear in J. Math. Phys.