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 …

Charged particles accelerated by electromagnetic fields emit radiation, which must, by the
conservation of momentum, exert a recoil on the emitting particle. The force of this recoil …

In the calculation of probabilities of physical processes occurring in a background classical
field, the local-constant-field approximation (LCFA) relies on the possibility of neglecting the …

The local-constant-field approximation (LCFA) is an essential theoretical tool for
investigating strong-field QED phenomena in background electromagnetic fields with …

A model for laser light absorption in electron–positron plasmas self-consistently created via
QED cascades is described. The laser energy is mainly absorbed due to hard photon …

Analytical calculations of radiative corrections in strong-field QED have hinted that in the
presence of an intense plane wave the effective coupling of the theory in the high-energy …

The only available analytical framework for investigating QED processes in a strong laser
field systematically relies on approximating the latter as a plane wave. However, realistic …

A long-standing prediction of quantum electrodynamics, yet to be experimentally observed,
is the interaction between real photons in vacuum. As a consequence of this interaction, the …

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 …