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arXiv · 2010.03893

High-intensity scaling in UV-modified QED

Robin Ekman·Tom Heinzl·Anton Ilderton
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Abstract

QED perturbation theory in a background field has been conjectured to break down for sufficiently high field intensity. The high-intensity behavior of a field theory is however intertwined with its high-energy (UV) behavior. Here we show that a UV modification of QED changes the high-intensity behaviour of observables. Specifically we study non-linear Compton scattering in a constant crossed field in QED with an additional Pauli term. In the UV modified theory the cross section exhibits a faster power-law scaling with intensity than in ordinary QED.

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Robin Ekman, Tom Heinzl, Anton Ilderton. 2020-10-08. High-intensity scaling in UV-modified QED. https://doi.org/10.1103/physrevd.102.116005

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