Observation of an Efimov-like resonance in ultracold atom-dimer scattering

Abstract

The field of few-body physics has originally been motivated by understanding nuclear matter. New model systems to experimentally explore few-body quantum systems can now be realized in ultracold gases with tunable interactions. Albeit the vastly different energy regimes of ultracold and nuclear matter (peV as compared to MeV), few-body phenomena are universal for near-resonant two-body interactions. Efimov states represent a paradigm for universal three-body states, and evidence for their existence has been obtained in measurements of three-body recombination in an ultracold gas of caesium atoms. Interacting samples of halo dimers can provide further information on universal few-body phenomena. Here we study interactions in an optically trapped mixture of such halo dimers with atoms, realized in a caesium gas at nanokelvin temperatures. We observe an atom-dimer scattering resonance, which we interpret as being due to a trimer state hitting the atom-dimer threshold. We discuss the close relation of this observation to Efimov's scenario, and in particular to atom-dimer Efimov resonances.

arXiv comment12 pages, 3 figures

References in corpus (24)

• Feshbach Resonances in Ultracold Gases
• Universality in Few-body Systems with Large Scattering Length
• Production of cold molecules via magnetically tunable Feshbach resonances
• Evidence for Efimov quantum states in an ultracold gas of cesium atoms
• Three-body recombination at large scattering lengths in an ultracold atomic gas
• Universal Properties of the Four-Body System with Large Scattering Length
• Experimental investigation of ultracold atom-molecule collisions
• Dissociation and Decay of Ultra-cold Sodium Molecules
• Collisional stability of fermionic Feshbach molecules
• Atom-molecule collisions in an optically trapped gas
• Inelastic collisions of ultra-cold heteronuclear molecules in an optical trap
• Analytical solution of the bosonic three-body problem
• Matter Wave Diffraction from an Inclined Transmission Grating: Searching for the Elusive He-4 Trimer Efimov State
• Spectroscopy of Ultracold, Trapped Cesium Feshbach Molecules
• Excited Thomas-Efimov levels in ultracold gases
• Range Corrections to Three-Body Observables near a Feshbach Resonance
• Collisions between tunable halo dimers: exploring an elementary four-body process with identical bosons
• Efimov states near a Feshbach resonance
• Collisional decay of 87Rb Feshbach molecules at 1005.8 G
• N-body Efimov states of trapped bosons
• Resonant Dimer Relaxation in Cold Atoms with a Large Scattering Length
• Effective Range Corrections to Three-Body Recombination for Atoms with Large Scattering Length
• Experimental Evidence for Efimov Quantum States
• Four-body legacy of the Efimov effect

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• Contact Measurements on Atomic BEC
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• Evidence for Ground- and Excited-State Efimov Trimers in a Three-State Fermi Gas
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• Non-universal Efimov Atom-Dimer Resonances in a Three-Component Mixture of 6Li
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