Operator product expansions as a consequence of phase space properties
Abstract
The paper presents a modelindependent, 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).
 Publication:

Journal of Mathematical Physics
 Pub Date:
 August 2005
 DOI:
 10.1063/1.2007567
 arXiv:
 arXiv:mathph/0502004
 Bibcode:
 2005JMP....46h2304B
 Keywords:

 11.10.z;
 Field theory;
 Mathematical Physics;
 81T05
 EPrint:
 v3: minor wording changes, as to appear in J. Math. Phys.