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

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 …

The investigation of spin and polarization effects in ultra-high intensity laser–plasma and
laser–beam interactions has become an emergent topic in high-field science recently. In this …

The production of a highly polarized positron beam via nonlinear Breit-Wheeler processes
during the interaction of an ultraintense circularly polarized laser pulse with a longitudinally …

We put forward a novel method for producing ultrarelativistic high-density high-polarization
positrons through a single-shot interaction of a strong laser with a tilted solid foil. In our …

Strong-field quantum electrodynamics (SF-QED) plays a crucial role in ultraintense laser–
matter interactions and demands sophisticated techniques to understand the related physics …

A derivation of fully polarization-resolved probabilities is provided for high-energy photon
emission and electron-positron pair production in ultrastrong laser fields. The probabilities …

The generation of highly polarized high-energy brilliant γ-rays via laser–plasma interaction
is investigated in the quantum radiation-reaction regime. We employ a quantum …

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 …

Experimental efforts toward the detection of the nonperturbative strong-field regime of the
Breit-Wheeler pair creation process plan to combine incoherent sources of GeV γ quanta …