Abstract
The motion and radiation of a classical electron in a conformally flat Robertson–Walker space, which corresponds to the quasi-Euclidean model of a radiation-dominated universe, is considered. The spectral-angular distribution of the energy radiated by the electron is found; the dependence of the spectrum on the momentum of the electron is investigated; estimates for the coherence interval are given. The results obtained show that the radiation spectrum of a classical electron coincides with the quasiclassical limit of the spectral distribution of the photons radiated by a Dirac electron moving in a radiation-dominated universe.
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Tsaregorodtsev, L.I., Medvedev, N.N. The Radiation Spectrum of a Classical Electron Moving in a Radiation-Dominated Universe. Russian Physics Journal 46, 230–236 (2003). https://doi.org/10.1023/A:1025473408589
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DOI: https://doi.org/10.1023/A:1025473408589