Darmstadt 2008 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 49: Ultrakurze Laserpulse (Anwendungen II)
Q 49.10: Vortrag
Donnerstag, 13. März 2008, 18:45–19:00, 3H
Ludwig-Maximilians-Universität, München, Deutschland — •Philipp von den Hoff, Dorothee Geppert, and Regina de Vivie-Riedle — Ludwig-Maximilians-Universität, München, Deutschland
An efficient approach to describe electron dynamics in molecules is developed which exploits quantum dynamics and quantum chemistry in a new way. The photodissociation of D2+, that can be controlled via the carrier-envelope phase of an ultrashort laser pulse, is chosen as a test system. In this system, the approach is checked against more rigorous theories as well as experiments which show excellent agreement. The electron dynamics is visualized in several ways including the phase information of the electronic wavefunction. The detailed analysis of the electron motion after different ionization events reveals the underlying complex dynamics which are hidden in the experiment. The interplay between the carrier-envelope phase and electron control is elucidated. The ansatz is based on the highly developed electronic structure theory and can be implemented quite easily. The method allows for a successive extension to multi-electron systems and simultaneously enables a quantum dynamical description of the nuclear motion.