Kiel 2011 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 4: Dichte Plasmen / Schwerionen- und Laserplasmen

P 4.1: Hauptvortrag

Dienstag, 29. März 2011, 10:30–11:00, HS C

Laser-matter and laser-vacuum interaction at extreme field strengths — •Hartmut Ruhl — Ludwig-Maximilians-Universität München, Lehrstuhl für Theoretische Physik, München

The projected ELI facility promises to make field strengths accessible for experiments that are orders of magnitude in excess of what is possible presently. It is believed that effects of radiation reaction and quantum vacuum stability become detectable on macroscopic scales. A model is presented that shows the onset of electron, positron and photon cascading in the presence of ELI-scale optical fields. The model is based on a set of transport equations in the context of strong electromagnetic fields. The latter are solved numerically. For circular polarized spatially constant external electric fields the grows rate of the cascade can also be obtained analytically. The analytical results will be compared with the numerical solution of the problem. In addition, more complex scenarios as they are relevant for ELI will be discussed.