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From effective actions to actual effects in QED

Holger Gies
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Abstract

The construction of low-energy effective actions in QED for several types of external conditions is reviewed. Emphasis is put on the application of these effective actions to a variety of physical effects which represent a manifestation of vacuum polarization. Soft-photon interactions with external electromagnetic fields and/or a heat bath are described, pair production at finite temperature is discussed, and finally a glance at photon-neutrino interactions is provided.

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Holger Gies. 2000-10-25. From effective actions to actual effects in QED. https://doi.org/10.1063/1.1374969

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