Observation of an Efimov resonance in an ultracold mixture of atoms and weakly bound dimers

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/77240

Title: Observation of an Efimov resonance in an ultracold mixture of atoms and weakly bound dimers
Author(s): Knoop, S.; Ferlaino, F.; Berninger, M.; Mark, M.; H. -C. Nager; Grimm, R.
Abstract: We discuss our recent observation of an atom-dimer Efimov resonance in an ultracold mixture of Cs atoms and Cs2 Feshbach molecules [Nature Phys. 5, 227 (2009)]. We review our experimental procedure and present additional data involving a non-universal g-wave dimer state, to contrast our previous results on the universal s-wave dimer. We resolve a seeming discrepancy when quantitatively comparing our experimental findings with theoretical results from effective field theory.
Publication type: Journal article
Source: Journal of Physics: Conference Series: proceedings of the XXVI International Conference on Photonic, Electronic and Atomic Collisions, Kalamazoo, Michigan, United States, 22-28 July 2009, Vol. 194, part 1 (2009)
Publication year: 2009
Keyword(s): Atoms; Dimers; Efimov resonance; Feshbach molecules; Ultracold gases
Publisher: IOP Publishing
ISSN: 1742-6588
Publisher URL: http://dx.doi.org/10.1088/1742-6596/194/1/012064
Peer reviewed