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arXiv · 2206.08211

Nonlinear Compton scattering in time-dependent electric fields: LCFA and beyond

E. G. Gelfer·A. M. Fedotov·A. A. Mironov·S. Weber
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Abstract

Locally constant crossed field approximation (LCFA) is a powerful tool for theoretical and numerical studies of various strong field quantum electrodynamical effects. We explore this approximation in detail for photon emission by a spinless particle in a strong time-dependent electric field. This kind of electromagnetic fields is of particular interest, because, in contrast to the comprehensively studied case of a plane wave, they are not crossed. We develop an approach for calculating photon emission probability in a generic time-dependent electric field, establish the range of applicability of LCFA, and calculate the corrections to it.

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E. G. Gelfer, A. M. Fedotov, A. A. Mironov, S. Weber. 2022-06-16. Nonlinear Compton scattering in time-dependent electric fields: LCFA and beyond. https://doi.org/10.1103/physrevd.106.056013

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