Berlin 2001 – wissenschaftliches Programm
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A: Atomphysik
A 20: Atoms in Fields
A 20.6: Vortrag
Freitag, 6. April 2001, 17:00–17:15, H1058
Dynamical localization in the 3-D kicked Rydberg atom — •Emil Persson1, Shuhei Yoshida1, Xiao-Min Tong2, Carlos Reinhold3, and Joachim Burgdörfer1 — 1Institute for Theoretical Physics, Vienna University of Technology, A 1040 Vienna, Austria — 2Cold Trapped Ions Project, ICORP, JST, AXIS 3F, 1-40-2 Fuda Chofu, Tokyo 182-0024, Japan — 3Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6373, USA
The dynamical localization for the 3D periodically kicked Rydberg atom is analyzed. For the 1D kicked atom, earlier work shows dynamical localization as the quantum suppression of classically fast ionization associated with unbounded chaotic trajectories. For the experimental observation, the crucial question is the dependence of the dynamical localization on the dimension. As the first step, we simulate the full 3D evolution of an extreme parabolic initial state elongated in the direction of the unidirectional kicks. We compare this simulation with the 1D model and find signatures of localization also in 3D. Implications for the experiment will be discussed.
Research funded by the FWF - SFB016, by NSF and by DOE-BES.