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Efimov Resonances in Ultracold Quantum Gases

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Abstract

Ultracold atomic gases have developed into prime systems for experimental studies of Efimov three-body physics and related few-body phenomena, which occur in the universal regime of resonant interactions. In the last few years, many important breakthroughs have been achieved, confirming basic predictions of universal few-body theory and deepening our understanding of such systems. We review the basic ideas along with the fast experimental developments of the field, focussing on ultracold cesium gases as a well-investigated model system. Triatomic Efimov resonances, atom-dimer Efimov resonances, and related four-body resonances are discussed as central observables. We also present some new observations of such resonances, supporting and complementing the set of available data.

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Authors and Affiliations

  1. Institut für Experimentalphysik and Zentrum für Quantenphysik, Universität Innsbruck, 6020, Innsbruck, Austria

    F. Ferlaino, A. Zenesini, M. Berninger, B. Huang, H. -C. Nägerl & R. Grimm

  2. Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020, Innsbruck, Austria

    R. Grimm

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  1. F. Ferlaino
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  2. A. Zenesini
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  3. M. Berninger
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  5. H. -C. Nägerl
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Correspondence to F. Ferlaino.

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Ferlaino, F., Zenesini, A., Berninger, M. et al. Efimov Resonances in Ultracold Quantum Gases. Few-Body Syst 51, 113–133 (2011). https://doi.org/10.1007/s00601-011-0260-7

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