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physics.optics2021
Self-Focussing of an Intense X-Ray Beam in Vacuum
Roland Sauerbrey, Christian Kohlfürst
The quantum vacuum shows an intensity-dependent nonlinear index of refraction. Consequently, we may consider vacuum as a non-linear medium enabling, at sufficiently high field stre…
physics.optics2018
All-optical signatures of quantum vacuum nonlinearities in generic laser fields
Alexander Blinne, Holger Gies, Felix Karbstein +2
All-optical experiments at the high-intensity frontier offer a promising route to unprecedented precision tests of quantum electrodynamics in strong macroscopic electromagnetic fie…