The DeWitt Equation in Quantum Field Theory
arXiv:1303.3497 · doi:10.1103/PhysRevD.87.105019
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.
26 pages
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