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 …

We review common extensions of particle-in-cell (PIC) schemes which account for strong
field phenomena in laser-plasma interactions. After describing the physical processes of …

Generation of circularly polarized (CP) and linearly polarized (LP) γ rays via the single-shot
interaction of an ultraintense laser pulse with a spin-polarized counterpropagating …

We derive an approximation to QED effects in intense laser fields which can be employed in
laser-particle collisions. Treating the laser as a plane wave of arbitrary intensity, we split the …

The generation of ultrarelativistic polarized positrons during the interaction of an
ultrarelativistic electron beam with a counterpropagating two-color petawatt laser pulse is …

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 …

The production of a highly polarized positron beam via nonlinear Breit-Wheeler processes
during the interaction of an ultraintense circularly polarized laser pulse with a longitudinally …