Consistency of a Causal Theory of Radiative Reaction with the Optical Theorem
arXiv:1107.2851 · doi:10.1103/PhysRevA.84.035801
Abstract
The Abraham-Lorentz-Dirac equation for a point electron, while suffering from runaway solutions and an acausal response to external forces, is compatible with the optical theorem. We show that a theory of radiative reaction that allows for a finite charge distribution is not only causal and free of runaway solutions, but is also consistent with the optical theorem and the standard formula for the Rayleigh scattering cross section.
4 pages, 2 figures
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