Quantum field theory predicts the vacuum to exhibit a non-linear response to strong electromag- netic fields. This fundamental tenet has remained experimentally challenging and is yet to be tested in the laboratory. We present proof of concept and detailed theoretical analysis of an experimental setup for precision measurements of the quantum vacuum signal generated by the collision of a bril-...
This was the topic of my Master thesis.
I will discuss the limitations of the polarization purity in X-ray channelcut polarizers due to Umweganregungen. To reach polarization purities in the range of 10^(-12) or better, these Umweganregungen has to be avoided. This can be done by align the azimuthal angle of the crystal very precicely. I developed a new and faster method, based on the...
