Dresden 2011 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 26: Poster III

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.

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DPG-Physik > DPG-Verhandlungen > 2011 > Dresden