A convergent series for the QED effective action |
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| Authors: | Cho Y M Pak D G |
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| Institution: | Department of Physics, College of Natural Sciences, Seoul National University, Seoul, Korea. |
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| Abstract: | The one-loop effective action of QED obtained by Heisenberg and Euler and by Schwinger has been expressed by an asymptotic perturbative series which is divergent. In this Letter we present a nonperturbative but convergent series of the effective action. With the convergent series we establish the existence of the manifest electric-magnetic duality in the one-loop effective action of QED. |
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