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 …

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 current state of research on high-intensity laser fields and their interaction with charged
particles is reviewed. Data on petawatt-class laser facilities are presented, and advanced …

Radiative polarization of electrons and positrons through the Sokolov-Ternov effect is
important for applications in high-energy physics. Radiative spin polarization is 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 …

Higher-order tree-level processes in strong laser fields, ie, cascades, are in general
extremely difficult to calculate, but in some regimes the dominant contribution comes from a …

Based on strong-field QED in the Furry picture we use the Dirac-Volkov propagator to derive
a compact expression for the differential emission probability of the two-photon Compton …

We show that the emission of soft photons via nonlinear Compton scattering in a pulsed
plane wave (laser field) is in general infrared divergent. We give examples of both soft and …