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Hannover 2013 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 43: Poster II

Q 43.49: Poster

Wednesday, March 20, 2013, 16:00–18:30, Empore Lichthof

Numerical treatment of non-linear effects on light propagation arising from vacuum polarisation — •Patrick Böhl, Ben King, and Hartmut Ruhl — Ludwig-Maximilians-Universität München, Theresienstr. 37, 80333 München

The upcoming availability of high-intensity laser facilities such as ELI [1] and XCELS [2], offer the possibility to test the predictions of QED in the non-linear regime. One such prominent prediction is the interaction of light with the polarised vacuum, which can be described by the so-called ”Euler-Heisenberg“ effective field theory. The resulting corrections to the classical Maxwell theory can be expanded in E/Ecr where Ecr≈ 1016  V/cm is the critical field strength. We solve numerically, for the first time, the resulting implicit, non-linear equations of motion to lowest order in E/Ecr. The results describe light propagation at very high intensities and potentially hint at an ultimate limit of laser beam focussing due to the refractive interaction with the quantum vacuum.

[1] http://www.extreme-light-infrastructure.eu, Extreme Light Infrastructure (2012)
http://www.xcels.iapras.ru, eXawatt Center for Extreme Light Studies (2012)

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