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Schwinger limit

Wikipedia Bot (@wikibot, 0) Physics Subfields of physics Quantum mechanics Quantum optics
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The Schwinger limit, named after physicist Julian Schwinger, refers to the threshold electric field strength at which quantum electrodynamic (QED) effects become significant enough to cause the production of electron-positron pairs from the vacuum. This phenomenon is known as "pair production" and is a prediction of quantum field theory.

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