Berlin 2001 – wissenschaftliches Programm

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A: Atomphysik

A 1: Posters Monday (Cluster, Atoms in Fields)

A 1.27: Poster

Montag, 2. April 2001, 12:30–15:00, AT3

Quantum–Signatures of Chaos in Phase–Space — •Marc Bienert¹, Florian Haug¹, Jörg Wichmann¹, Mark G. Raizen², Thomas Seligman³, and Wolfgang P. Schleich¹ — ¹Abteilung für Quantenphysik, Universtität Ulm — ²Department of Physics, University of Texas - Austin — ³Instituto de Matematicas, University of Mexico

We compare the classical and quantum dynamics of a kicked rotor using the Wigner function. We identify its negative parts as the origin of dynamical localization. This approach provides new insights into the influence of sharp corners of the optical potential on the localization. Moreover, we propose an experimentally feasible method for the reconstruction of a quantum state which displays dynamical localization.