Hannover 2010 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 8: Poster I

A 8.47: Poster

Dienstag, 9. März 2010, 16:30–19:00, Lichthof

Stabilization dynamics of a model hydrogen molecular ion: Floquet and time-dependent density functional theory analysis — •Varun Kapoor¹ and Dieter Bauer² — ¹Max-Planck-Institut für Kernphysik, Postfach 103980, 69029 Heidelberg, Germany — ²Institut für Physik, Universität Rostock, 18051 Rostock, Germany

Atomic and molecular systems put into strong high-frequency radiation are known to stabilize against ionization. In the molecular case the question arises how the dissociation dynamics is influenced by the stabilized electron. We solve the time-dependent Schrödinger equation for a model hydrogen molecular ion. The observed dynamics and the harmonics emitted are analyzed in terms of Floquet states. In general, several of the eigenstates of the combined electron-ion Kramers-Henneberger potential are occupied. The exact results are compared with results from a multi-component time-dependent density functional theoretical treatment of the system, evaluating different levels of approximation to the exchange correlation potential.