37 citations · 197 across the 10 of their papers we have counts for
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Direct accessibility of the fundamental constants governing light-by-light scattering
Felix Karbstein, Daniel Ullmann, Elena A. Mosman +1
Quantum field theory predicts the vacuum to exhibit a non-linear response to strong electromagnetic fields. This fundamental tenet has remained experimentally challenging and is ye…
Vacuum birefringence and diffraction at XFEL: from analytical estimates to optimal parameters
Elena A. Mosman, Felix Karbstein
We study vacuum birefringence and x-ray photon scattering in the head-on collision of x-ray free electron and high-intensity laser pulses. Resorting to analytical approximations fo…
Photon polarization tensor in circularly polarized Hermite- and Laguerre-Gaussian beams
Felix Karbstein, Elena A. Mosman
We derive analytical expressions for the photon polarization tensor in circularly polarized Hermite- and Laguerre-Gaussian beams, complementing the corresponding results for linear…
The photon polarization tensor in pulsed Hermite- and Laguerre-Gaussian beams
Felix Karbstein, Elena A. Mosman
In this article, we provide analytical expressions for the photon polarization tensor in pulsed Hermite- and Laguerre-Gaussian laser beams. Our results are based on a locally const…