Hannover 2010 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 30: Quantum Effects: QED II / Interference and Correlations III
Q 30.3: Talk
Wednesday, March 10, 2010, 14:30–14:45, A 320
Non-perturbative 2-photon Compton scattering from a circularly polarized laser — •Daniel Seipt and Burkhard Kämpfer — Forschungszentrum Dresden-Rossendorf, PF 510119, 01314 Dresden, Germany
An electron, moving in a strong laser field, emits photons. The Furry picture with Volkov states and propagators allows for a non-perturbative treatment of multi-photon laser-electron interactions. While the 1-photon emission has a classical analog [1], the 2-photon emission (double Compton effect) is a pure quantum effect, where the two photons have a certain degree of polarization entanglement. At low laser intensity one recovers [2], while at high laser intensity (a0 1) strong-field effects become important. These will be quantified in the talk, thus extending [3].
[1] T. Heinzl, D. Seipt, B. Kämpfer, arXiv: 0911.1622v2, (2009) [2] F. Mandl, T. H. R. Skyrme, Proc. Roy. Soc. A 215 497, (1952). [3] E. Lötstedt, U. Jentschura, Phys. Rev. Lett. 103, 110404 (2009).