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Article

Interpretations and Naturalness in the Radiation-Reaction Problem

1
Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía, 18008 Granada, Spain
2
Departamento de Física Teórica and IPARCOS, Universidad Complutense de Madrid, 28040 Madrid, Spain
3
Instituto de Estructura de la Materia (IEM-CSIC), Serrano 121, 28006 Madrid, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Stephen A. Fulling
Symmetry 2021, 13(4), 658; https://doi.org/10.3390/sym13040658
Received: 8 March 2021 / Revised: 5 April 2021 / Accepted: 7 April 2021 / Published: 12 April 2021
After more than a century of history, the radiation-reaction problem in classical electrodynamics still surprises and puzzles new generations of researchers. Here, we revise and explain some of the paradoxical issues that one faces when approaching the problem, mostly associated with regimes of uniform proper acceleration. The answers we provide can be found in the literature and are a synthesis of a large body of research. We only present them in a personal way that may help in their understanding. Besides, after the presentation of the standard answers, we motivate and present a twist to those ideas. The physics of emission of radiation by extended charges (charges with internal structure) might proceed in a surprising oscillating fashion. This hypothetical process could open up new research paths and a new take on the equivalence principle. View Full-Text
Keywords: radiation reaction; self-force; radiation by moving charges; equivalence principle; uniform acceleration radiation reaction; self-force; radiation by moving charges; equivalence principle; uniform acceleration
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MDPI and ACS Style

Barceló, C.; Garay, L.J.; Redondo-Yuste, J. Interpretations and Naturalness in the Radiation-Reaction Problem. Symmetry 2021, 13, 658. https://doi.org/10.3390/sym13040658

AMA Style

Barceló C, Garay LJ, Redondo-Yuste J. Interpretations and Naturalness in the Radiation-Reaction Problem. Symmetry. 2021; 13(4):658. https://doi.org/10.3390/sym13040658

Chicago/Turabian Style

Barceló, Carlos, Luis J. Garay, and Jaime Redondo-Yuste. 2021. "Interpretations and Naturalness in the Radiation-Reaction Problem" Symmetry 13, no. 4: 658. https://doi.org/10.3390/sym13040658

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