Perturbative solution of the Schwinger model
نویسنده
چکیده
For the exactly solvable Schwinger model one interesting question is how to infer the exact solution from perturbation theory. We give a systematic procedure of deriving the exact solution from Feynman diagrams of arbitrary order for arbitrary n-point functions. As a byproduct, from perturbation theory we derive exact integral equations that the n-point functions have to obey. )permanent address: Institut für theoretische Physik, Universität Wien Boltzmanngasse 5, 1090 Wien, Austria email address: [email protected]
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