Darmstadt 2008 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 27: Poster Quantengase
Q 27.7: Poster
Dienstag, 11. März 2008, 16:30–19:00, Poster C2
Towards a degenerate mixture of 6Li and 40K — •Antje Ludewig, Tobias Tiecke, Sebastian Kraft, Steve Gensemer, and Jook Walraven — Van der Waals-Zeeman-Instituut, Universiteit van Amsterdam, The Netherlands
We have constructed an apparatus for the simultaneous cooling of the fermionic isotopes 6Li and 40K. Our goal is to get a degenerate mixture to search for novel pairing mechanisms involving fermions of different masses.
Instead of using a Zeeman slower as a source for cold lithium atoms we have developed a lithium 2D-MOT which is loaded directly from thermal vapor emitted by an hot oven at 400C. A second 2D-MOT, loaded from 40K enriched vapor, serves as a potassium source.
Using these bright sources we load via differential pumping sections 109 atoms of both 6Li and 40K into a dual MOT in the main vacuum chamber. We then transfer both species into a magnetic trap and cool them by forced evaporation.
The current status of the experiment is summarized on the poster.