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Phys. Rev. Lett. 93, 143001 (2004) [4 pages]

Observation of Feshbach Resonances between Two Different Atomic Species

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C. A. Stan, M. W. Zwierlein, C. H. Schunck, S. M. F. Raupach, and W. Ketterle
Department of Physics, MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, MIT, Cambridge, Massachusetts 02139, USA

Received 4 June 2004; published 30 September 2004

We have observed three Feshbach resonances in collisions between 6Li and 23Na atoms. The resonances were identified as narrow loss features when the magnetic field was varied. The molecular states causing these resonances have been identified, and additional 6Li-23Na resonances are predicted. These resonances will allow the study of degenerate Bose-Fermi mixtures with adjustable interactions and could be used to generate ultracold heteronuclear molecules.


©2004 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.93.143001
DOI: 10.1103/PhysRevLett.93.143001
PACS: 32.80.Pj, 34.50.–s, 67.60.–g

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