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Classical resummation and breakdown of strong-field QED
- Source :
- Phys. Rev. Lett. 127, 061601 (2021)
- Publication Year :
- 2021
-
Abstract
- QED perturbation theory has been conjectured to break down in sufficiently strong backgrounds, obstructing the analysis of strong-field physics. We show that the breakdown occurs even in classical electrodynamics, at lower field strengths than previously considered, and that it may be cured by resummation. As a consequence, an analogous resummation is required in QED. A detailed investigation shows, for a range of observables, that unitarity removes diagrams previously believed to be responsible for the breakdown of QED perturbation theory.<br />Comment: 8 pages, 2 figures; v2: Journal version with Supplementaries added
- Subjects :
- High Energy Physics - Phenomenology
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 127, 061601 (2021)
- Publication Type :
- Report
- Accession number :
- edsarx.2101.12111
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.127.061601