The DeWitt Equation in Quantum Field Theory
Parikshit Dutta, Krzysztof A. Meissner, Hermann Nicolai
TL;DR
This paper revisits the DeWitt equation in quantum field theory, providing a formal solution and exploring its applications in models like the two-dimensional Wess-Zumino model.
Contribution
It offers a new perspective on the DeWitt equation, including a formal solution and analysis in specific well-defined models.
Findings
Presented a formal solution to the DeWitt equation.
Analyzed the equation in the context of the Wess-Zumino model.
Discussed conditions under which the equation is well-defined.
Abstract
We take a new look at the DeWitt equation, a defining equation for the effective action functional in quantum field theory. We present a formal solution to this equation, and discuss the equation in various contexts, and in particular for models where it can be made completely well defined, such as the Wess-Zumino model in two dimensions.
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