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 …

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 …

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 …

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 …

The petawatt (PW) laser facility of the Berkeley Lab Laser Accelerator (BELLA) Center has
recently commissioned its second laser pulse transport line. This new beamline can be …

We propose a new approach to obtain the momentum expectation value of an electron in a
high-intensity laser, including multiple photon emissions and loops. We find a recursive …

This Letter of Intent describes LUXE (Laser Und XFEL Experiment), an experiment that aims
to use the high-quality and high-energy electron beam of the European XFEL and a …

We study single, double and higher-order nonlinear Compton scattering where an electron
interacts nonlinearly with a high-intensity laser and emits one, two or more photons. We …