Conference »Quantum Physics of Nature« (QUPON 2005) Mitschnitt einer Veranstaltung der Fakultät für Physik der Universität Wien am Sonntag, dem 22. Mai 2005 im Großen Festsaal der Universität Wien Teil 15: Rudolf Grimm: Quantum physics of ultracold molecules Abstract: Molecular quantum gases in the nanokelvin range can be created through a magnetically controlled association of atom pairs. The molecules are formed in a single quantum state and, because of their rich internal structure, provide us with an intriguing new system in quantum physics of ultracold matter. We report on our experiments with pure molecular quantum gases of 133Cs2 dimers. We demonstrate the creation and detection of the molecules, we report on the observation of resonances in molecule-molecule collisions that indicate the formation of 133Cs4 tetramer states, and we show the realization of a molecular matter-wave interferometer. Rudolf Grimm ist Professor für Experimentalphysik an der Universität Innsbruck. INHALT ====== Kapitel Titel Position --------------------------------------------------------------------- 1. Vorspann 00:00:00 2. Introduction 00:00:09 3. Bose-Einstein-condensate of caesium 00:04:31 4. Trapped atoms. Molecular structure of caesium 00:10:53 5. Magnetic moment. Collisional decay 00:17:30 6. Experiments 00:24:11 7. Questions from the audience 00:29:26

Cäsium, Ultrakaltes Atom, Bose-Einstein-Kondensation

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