Frankfurt 2006 – wissenschaftliches Programm
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Q: Quantenoptik und Photonik
Q 34: Poster Quantengase
Q 34.2: Poster
Dienstag, 14. März 2006, 16:30–18:30, Labsaal
A Fermi mixture of 6Li and 40K — •Antje Ludewig, Tobias Tiecke, Steve Gensemer, and Jook Walraven — Van der Waals-Zeeman Instituut, Universiteit van Amsterdam, Valckenierstraat 65, 1018 XE Amsterdam, The Netherlands
We report on our progress in the construction of a new apparatus for the simultaneous cooling of the Fermionic Alkali isotopes 6Li and 40K. Our goal is to cool the mixture to degeneracy and search for novel pairing mechanisms involving Fermions of different masses.
We have constructed, for the first time, a 2D-MOT source of cold Li atoms directly loaded from a thermal vapor, thereby circumventing the need for a Zeeman slower. The 2D-MOT is loaded from a effusive Li oven source and the trapping light is derived from a YAG-pumped dye laser.
As a source for K, a 2D-MOT is loaded from 40K-enriched thermal vapor. The cold beams of both species are then loaded via differential pumping sections into the main chamber, where we have already observed a dual MOT. The dual MOT will be transferred into a optically plugged magnetic trap and from there into a optical trap. With forced evaporative cooling the Fermi mixture will be cooled to degeneracy.