Dresden 2011 – wissenschaftliches Programm
A 26.63: Poster
Donnerstag, 17. März 2011, 16:00–18:30, P2
Feshbach Spectroscopy of Sodium and Sodium-Lithium — •Raphael Scelle, Tobias Schuster, Arno Trautmann, Steven Knoop, and Markus K. Oberthaler — Kirchhoff Institut für Physik, Universität Heidelberg, Im Neuenheimer Feld 227, 69120 Heidelberg
We present our experimental setup for the creation of an ultracold Bose-Fermi mixture of 23Na and 6Li. In our first experiments we observed several new Na intraspecies and Na-Li interspecies Feshbach resonances, with the highest resonances located above 2kG. Our precise and extensive Feshbach spectroscopy of sodium up to g-wave resonances allows for a better determination of the Na-Na interaction potentials. The observed Na-Li spectrum at high magnetic fields deviates significantly from the previously predicted one and we propose an alternative scenario based on the Asympotic Bound-state Model.