Düsseldorf 2007 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 57: Poster: Quantum Control

MO 57.5: Poster

Donnerstag, 22. März 2007, 16:30–18:30, Poster A

Local control of the quantum dynamics in multiple potential wells. — •Volker Engel, Philipp Marquetand, Stefanie Gräfe, and Daniel Scheidel — Institut für Physikalische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg

The driven wave-packet dynamics in potentials exhibiting several potential wells is investigated. Therefore, local control strategies are employed where the control field is constructed from the system's dynamics at any instant of time [1]. It is shown that particles can be moved successively between various potential minima. Furthermore, results are presented which indicate that the intuitive local control scheme allows for the initiation of a clockwise or counter-clockwise rotational motion of a model molecular motor [2]. [1] S. Gräfe, C. Meier, V. Engel, J. Chem. Phys. 122, 184103 (2005). [2] P. Marquetand, S. Gräfe, D. Scheidel, V. Engel, J. Chem. Phys. 124, 054325 (2006).