Various fundamental-physics experiments such as measurement of the magnetic
birefringence of the vacuum, searches for ultralight dark-matter particles (eg, axions), and …

In this report we show that a vacuum is a nonlinear optical medium and discuss what the
optical phenomena are that should exist in the framework of the standard model of particle …

The results of Monte-Carlo simulations of electron-positron-photon cascades initiated by
slow electrons in circularly polarized fields of ultrahigh strength are presented and …

This Letter of Intent describes LUXE (Laser Und XFEL Experiment), an experiment that aims
to use the high-quality and high-energy electron beam of the European XFEL and a …

We consider stimulated pair production employing strong-field QED in a high-intensity laser
background. In an infinite plane wave, we show that light-cone quasi-momentum can only …

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 …

A bstract We study the effective interactions of external electromagnetic fields induced by
fluctuations of virtual particles in the vacuum of quantum electrodynamics. Our main focus is …

The new generation of laser facilities is expected to deliver short (10 fs–100 fs) laser pulses
with 10–100 PW of peak power. This opens an opportunity to study matter at extreme …

Relativistic positron beams are required for fundamental research in nonlinear strong field
QED, plasma physics, and laboratory astrophysics. Positrons are difficult to create and …

Birefringence is one of the fascinating properties of the vacuum of quantum electrodynamics
(QED) in strong electromagnetic fields. The scattering of linearly polarized incident probe …