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arXiv · 2306.07887

Improving Euler-Heisenberg-Schwinger effective action with dressed photons

Stefan Evans·Johann Rafelski
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Abstract

We implement a longstanding proposal by Weisskopf to apply virtual polarization corrections to the in/out external fields in study of the Euler-Heisenberg-Schwinger effective action. Our approach requires distinguishing the electromagnetic and polarization fields based on mathematical tools developed by Bia{\l}ynicki-Birula, originally for the Born-Infeld action. Our solution is expressed as a differential equation where the one-loop effective action serves as input. As a first result of our approach, we recover the higher-order one-cut reducible loop diagrams discovered by Gies and Karbstein.

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Stefan Evans, Johann Rafelski. 2023-06-13. Improving Euler-Heisenberg-Schwinger effective action with dressed photons. https://doi.org/10.12693/aphyspola.143.s13

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