Stuttgart 2012 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 40: Poster: Ultra-cold atoms, ions and BEC
A 40.29: Poster
Donnerstag, 15. März 2012, 16:30–19:00, Poster.V
A new lattice setup for a three-component Fermi gas — •Johanna Bohn1,2, Thomas Lompe1,2, Martin Ries1,2, Friedhelm Serwane1,2, Juliana Stachurska1,2, Andre Wenz1,2, Gerhard Zürn1,2, and Selim Jochim1,2 — 1Physikalisches Institut, Universität Heidelberg — 2Max-Planck-Institut für Kernphysik, Heidelberg
Strongly interacting degenerate three-component Fermi gases promise to show interesting many-body physics. However, preparing such systems has so far been inhibited by large three-body loss rates which scale with the scattering length to the fourth power. On this poster we present progress towards the preparation of a three-component Fermi gas of Li-6 atoms in a two-dimensional optical lattice potential. This should allow to stabilize the three-component system by making use of the quantum-Zeno effect which suppresses three-body loss as described in [1]. We have cooled a gas of two-component 6Li atoms to quantum degeneracy in an optical dipole trap and transferred atoms into the third state using a radio frequency signal. The next step is loading them into a two-dimensional light sheet onto which the two-dimensional lattice will be projected to produce a stable strongly interacting three-component Fermi gas.
[1] A. Kantian et al. PRL 103, 240401 (2009)