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Operator product expansions as a consequence of phase space properties

Henning Bostelmann
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Abstract

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).

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Henning Bostelmann. 2005-08-07. Operator product expansions as a consequence of phase space properties. https://doi.org/10.1063/1.2007567

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