Efimov states near a Feshbach resonance
arXiv:cond-mat/0702462 · doi:10.1103/PhysRevA.78.030701
Abstract
We describe three-body collisions close to a Feshbach resonance by taking into account two-body scattering processes involving both the open and the closed channel. We extract the atom-dimer scattering length and the three-body recombination rate, predicting the existence at negative scattering length of a sharp minimum in the recombination losses due to the presence of a shallow bound level. We obtain very good agreement with the experimental results in atomic 133Cs of Kraemer et al. [Nature 440, 315 (2006)], and predict the position of Efimov resonances in a gas of 39K atoms.
Version accepted for publication: minor revisions concerning the comparison with the cesium experiment
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- Universality of the Three-Body Parameter for Efimov States in Ultracold Cesium
- Origin of the Three-body Parameter Universality in Efimov Physics
- Efimov Resonances in Ultracold Quantum Gases
- Universality of the three-body Efimov parameter at narrow Feshbach resonances
- Comparing and contrasting nuclei and cold atomic gases
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- Efimov physics beyond universality
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- The Hyperspherical Four-Fermion Problem
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- Inelastic Collisions of a Fermi Gas in the BEC-BCS Crossover
- Ultracold three-body collisions near narrow Feshbach resonances
- Crossover in the Efimov spectrum
- Efimov states near a Feshbach resonance and the limits of van der Waals universality at finite background scattering length
- A strongly interacting Bose gas: Nozières and Schmitt-Rink theory and beyond
- Three-body problem in a two-dimensional Fermi gas
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- Finite-temperature effects on a triatomic Efimov resonance in ultracold cesium
- Universal three-body physics at finite energy near Feshbach resonances
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- Accurate simulation of Efimov physics in ultracold atomic gases with realistic three-body multichannel interactions