Dresden 2011 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 17: Ultra-cold atoms, ions and BEC IV (with Q)

A 17.3: Vortrag

Mittwoch, 16. März 2011, 17:00–17:15, BAR 205

Observation of new Feshbach Resonances in Sodium-Lithium Mixtures — •Tobias Schuster, Raphael Scelle, Arno Trautmann, Steven Knoop, and Markus K. Oberthaler — Kirchhoff Institut für Physik, Universität Heidelberg, Im Neuenheimer Feld 227, 69120 Heidelberg

We report on studies of Feshbach resonances in an ultracold Bose-Fermi mixture of 23Na and 6Li. The experimentally observed spectra of resonances cover magnetic fields of more than 2kG and different spin channels. Our findings are explained in terms of the Asymptotic Bound-state Model, which gives a comprehensive explanation of our experimental results, differing substantially from previous theoretical predictions [1]. Possible applications of this ultracold Bose-Fermi mixture are discussed.

M. Gacesa, P. Pellegrini, and R. Cote, Phys. Rev. A 78, 010701(R) (2008)

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