Dresden 2011 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 15: Poster 1: Quanteninformation, Quanteneffekte, Laserentwicklung, Laseranwendungen, Ultrakurze Pulse, Photonik

Q 15.76: Poster

Montag, 14. März 2011, 16:30–19:30, P1

Radiative corrections in strong field QED in intense laser fields — •Sebastian Meuren and Antonino Di Piazza — Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg

We investigate radiative corrections to electron states in a background plane-wave laser field [1]. At the tree level, electrons are described by Volkov states, which are solutions of the Dirac equation in a plane-wave field. However, the interaction of the electron with its own electromagnetic field leads to “radiative” modifications of the states [2,3]. We investigate these quantum corrections by solving the Dirac-Schwinger equation perturbatively in a constant-crossed field and in a linearly-polarized plane wave field. To this end we present a new derivation of the mass operator entering the Dirac-Schwinger equation for a constant-crossed field. Finally, experimental possibilities of measuring these radiative corrections are discussed.

[1] S. Meuren and A. Di Piazza, in preparation.

[2] V. I. Ritus, Journal of Russian Laser Research 6, 497 (1985).

[3] V. N. Baier, M. Katkov, V. M. Strakhovenko, Electromagnetic Processes at High Energies in Oriented Single Crystals (World Scientific, Singapore, 1998).