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 …

Spin polarization of an ultrarelativistic electron beam head-on colliding with an ultraintense
laser pulse is investigated in the quantum radiation-dominated regime. We develop a Monte …

Generation of ultrarelativistic polarized leptons during interaction of an ultrarelativistic
electron beam with a counterpropagating ultraintense laser pulse is investigated in 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 …

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

In this paper we derive and discuss the completely spin-and photon-polarization-dependent
probability rates for nonlinear Compton scattering and nonlinear Breit-Wheeler pair …

Radiative and nonradiative electron spin-flip probabilities are analyzed in both plane wave
and focused laser backgrounds. We provide a simple and physically transparent description …

High-energy spin-polarized electron, positron, and γ-photon beams have many significant
applications in the study of material properties, nuclear structure, particle physics, and high …

Two-photon emission of an electron in an electromagnetic plane wave of vanishing
frequency is calculated. The unpolarized probability is split into a two-step process, which is …