Summing up the perturbation series in the Schwinger Model
Physics Department, Warsaw University, ul. Hoża 69, 00-681, Warsaw, Poland
* e-mail: email@example.com
Revised: 12 May 1998
Published online: 17 September 2013
Perturbation series for the electron propagator in the Schwinger Model is summed up in a direct way by adding contributions coming from individual Feynman diagrams. The calculation, performed entirely in momentum space, shows the complete agreement between nonperturbative and perturbative approaches.
© Springer-Verlag, 1999