The renormalization constants of QED in unitary approximation |
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Authors: | Hans D. Dahmen Thomas Mannel Panagiotis Manakos |
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Affiliation: | 1. Fachbereich Physik der Universit?t Siégen, D-5900, Siegen, Federal Republic of Germany 2. Institut für Kernphysik der Technische Hochschule Darmstadt, D-5100, Darmstadt, Federal Republic of Germany
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Abstract: | ![]() A unitary approximation for the time-evolution operator given through the exponential representation is used to calculate the renormalization constants of QED. The results obtained by this method are the same as the renormalization group improvement of the usual perturbation series taking into account terms up to the second order ine. |
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