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Effective action for QED4 through zeta function regularization

C. G. Beneventano, E. M. Santangelo

hep-tharXiv:hep-th/0006123

Abstract

We obtain, through zeta function methods, the one-loop effective action for massive Dirac fields in the presence of a uniform, but otherwise general, electromagnetic background. After discussing renormalization, we compare our zeta function result with Schwinger's proper time approach.

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