Observation of quantum effects on radiation reaction in strong fields.

Nat Commun · 2026 · PMC12858892 · PMID 41530130

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highly significantno p-value reported

The highly significant observation of lower mean electron energies and lower peak heights for hits compared to nulls is consistent with electron energy loss and spectral broadening and constitutes strong evidence of radiation reaction.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.