Efimov Resonances in Ultracold Quantum Gases

Year: 2011

Authors: Ferlaino F., Zenesini A., Berninger M., Huang B., Nagerl, H.-C., Grimm R.

Autors Affiliation: Univ Innsbruck, Inst Expt Phys, A-6020 Innsbruck, Austria; Univ Innsbruck, Zentrum Quantenphys, A-6020 Innsbruck, Austria;
Austrian Acad Sci, Inst Quantenopt & Quanteninformat, A-6020 Innsbruck, Austria

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.

Journal/Review: FEW-BODY SYSTEMS

Volume: 51(2-4)      Pages from: 113  to: 133

KeyWords: LARGE SCATTERING LENGTH; FESHBACH SPECTROSCOPY; ATOMIC-COLLISIONS; 4-BODY SYSTEM; 3-BODY SYSTEM; CESIUM; RECOMBINATION; STATES; UNIVERSALITY; PARTICLES
DOI: 10.1007/s00601-011-0260-7

Citations: 116
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