Physics – Condensed Matter – Quantum Gases
Scientific paper
2011-08-09
Few-Body Syst (2011) 51: 113-133
Physics
Condensed Matter
Quantum Gases
23 pages, 13 figures
Scientific paper
10.1007/s00601-011-0260-7
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.
Berninger Martin
Ferlaino Francesca
Grimm Rudolf
Huang Bo
Nägerl Hanns-Christoph
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