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 investigation of spin and polarization effects in ultra-high intensity laser–plasma and
laser–beam interactions has become an emergent topic in high-field science recently. In this …

Accurate modeling is necessary to support precision experiments investigating strong-field
QED phenomena. This modeling is particularly challenging in the transition between the …

We investigate the phenomenon of electron-positron pair production from vacuum in the
presence of a strong electric field of circular polarization. By means of a nonperturbative …

In a previous paper we showed how higher-order strong-field-QED processes in long laser
pulses can be approximated by multiplying sequences of'strong-field Mueller matrices'. We …

High-power laser facilities give experimental access to fundamental strong-field quantum
electrodynamics processes. A key effect to be explored is the nonlinear Breit-Wheeler …

Strong-field quantum electrodynamics (SF-QED) plays a crucial role in ultraintense laser–
matter interactions and demands sophisticated techniques to understand the related physics …

Fully polarized nonlinear Breit-Wheeler pair production from a beam of polarized seed
photons is investigated in pulsed plane wave backgrounds. The particle (electron and …