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Berlin 2005 – scientific programme

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Q: Quantenoptik und Photonik

Q 32: Quantengase I

Q 32.10: Talk

Tuesday, March 8, 2005, 13:00–13:15, HU Kinosaal

Strongly interacting Fermions and molecule formation in a 3D optical lattice — •Henning Moritz, Thilo Stöferle, Kenneth Günter, Christian Schori, Michael Köhl, and Tilman Esslinger — Institute of Quantum Electronics, ETH Zürich, Hönggerberg, CH–8093 Zürich, Switzerland

The exploration of quantum degenerate gases of fermionic atoms is driven by the ambition to get deeper insight into long-standing problems of quantum many-body physics, such as high temperature superconductivity. For most models describing quantum many-body phenomena in materials, the underlying lattice structure is a key ingredient.

We have loaded degenerate fermionic potassium atoms into such a periodic potential created by a 3D optical lattice and observed the Fermi surfaces and dynamics of the system (see talk by T. Stöferle). We will report on the behaviour of the spin mixture in the vicinity of a Feshbach resonance. The reversible formation of molecules in the lattice and recent experiments will be discussed.

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