Upcoming and planned experiments combining increasingly intense lasers and energetic
particle beams will access new regimes of nonlinear, relativistic, quantum effects. This …

Plasma current filamentation of an ultrarelativistic electron beam im**ing on an overdense
plasma is investigated, with emphasis on radiation-induced electron polarization. Particle-in …

The forthcoming generation of multi-petawatt lasers opens the way to abundant pair
production by the nonlinear Breit–Wheeler process, ie the decay of a photon into an electron …

By taking the spin and polarization of the electrons, positrons and photons into account in
the strong-field QED processes of nonlinear Compton emission and pair production, we find …

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 …

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 …

The quantum vacuum plays a central role in physics. Quantum electrodynamics (QED)
predicts that the properties of the fermionic quantum vacuum can be probed by extremely …

Locally constant crossed field approximation (LCFA) is a powerful tool for theoretical and
numerical studies of various strong field quantum electrodynamical effects. We explore this …

Although existing technology cannot yet directly produce fields at the Schwinger level,
experimental facilities can already explore strong-field quantum electrodynamics (QED) …

We present new exact solutions of the Landau–Lifshitz (LL) and higher-order LL equations
describing particle motion, with radiation reaction, in intense electromagnetic fields. Through …