Upcoming and planned experiments combining increasingly intense lasers and energetic
particle beams will access new regimes of nonlinear, relativistic, quantum effects. This …

The dynamics of charged particles in electromagnetic fields is an essential component of
understanding the most extreme environments in our Universe. In electromagnetic fields of …

Abstract This Conceptual Design Report describes LUXE (Laser Und XFEL Experiment), an
experimental campaign that aims to combine the high-quality and high-energy electron …

The dynamics of energetic particles in strong electromagnetic fields can be heavily
influenced by the energy loss arising from the emission of radiation during acceleration …

We demonstrate the experimental feasibility of probing the fully nonperturbative regime of
quantum electrodynamics with a 100 GeV-class particle collider. By using tightly …

Charged particles accelerated by electromagnetic fields emit radiation, which must, by the
conservation of momentum, exert a recoil on the emitting particle. The force of this recoil …

Since the invention of chirped pulse amplification, which was recognized by a Nobel Prize in
physics in 2018, there has been a continuing increase in available laser intensity. Combined …

The locally constant field approximation (LCFA) has to date underpinned the numerical
simulation of quantum processes in laser-plasma physics and astrophysics, but its validity …

A model for laser light absorption in electron–positron plasmas self-consistently created via
QED cascades is described. The laser energy is mainly absorbed due to hard photon …

Strong background fields require a nonperturbative treatment, which is afforded in QED by
the Furry expansion of scattering amplitudes. It has been conjectured that this expansion …