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arXiv · 1201.4045

Two-photon Compton process in pulsed intense laser fields

D. Seipt·B. Kampfer
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Abstract

Based on strong-field QED in the Furry picture we use the Dirac-Volkov propagator to derive a compact expression for the differential emission probability of the two-photon Compton process in a pulsed intense laser field. The relation of real and virtual intermediate states is discussed, and the natural regularization of the on-shell contributions due to the finite laser pulse is highlighted. The inclusive two-photon spectrum is two orders of magnitude stronger than expected from a perturbative estimate.

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D. Seipt, B. Kampfer. 2012-05-09. Two-photon Compton process in pulsed intense laser fields. https://doi.org/10.1103/physrevd.85.101701

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