Abstract
Atomic motion in pulsed, periodic optical potentials provides a unique experimental testing ground for quantum chaos. In the first generation of experiments with sodium atoms we observed dynamical localization, a quantum suppression of chaotic diffusion. To go beyond this work we have constructed an experiment with cold cesium atoms, and report our first results from this system. The larger mass and longer wavelength push out the momentum boundary in phase space that arises from the nonzero duration of the pulses. This feature should enable the study of noise effects and dimensionality on dynamical localization. We propose a new method of quantum state preparation based on stimulated Raman transitions for studies of mixed phase space dynamics.
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