Nonlinear trident in the high-energy limit: Nonlocality, Coulomb field, and resummations

Abstract

Trident production, where a high energy electron entering an intense laser field produces an additional electron-positron pair, is a nonlinear process in which QED becomes a strongly coupled, i.e. non-perturbative, theory. Motivated by plans for new trident production experiments like LUXE and FACET-II, this paper examines the conflicting predictions of the Weizs\"acker-Williams and Locally Constant Field approximations. The author presents new results for understanding the high-energy, non-linear regime via novel approximation methods and modern resummation techniques.

Topics & Concepts