Three-boson recombination at ultralow temperatures

Abstract

The effects of trimer continuum resonances are considered in the three-body recombination rate of a Bose system at finite energies for large and negative two-body scattering lengths ($a$). The thermal average of the rate allows to apply our formula to Bose gases at ultra-low temperatures. We found a good quantitative description of the experimental three-body recombination length of cesium atoms to deeply bound molecules up to 500 nK. Consistent with the experimental data, the increase of the temperature moves the resonance peak of the three-body recombination rate to lower values of $|a|$ exhibiting a saturation behavior.

References in corpus (1)

• Evidence for Efimov quantum states in an ultracold gas of cesium atoms

Cited by in corpus (14)

• Efimov Resonances in Ultracold Quantum Gases
• Few-body physics in resonantly interacting ultracold quantum gases
• Universal van der Waals Physics for Three Ultracold Atoms
• Three-Body Recombination of Identical Bosons with a Large Positive Scattering Length at Nonzero Temperature
• Efimov states near a Feshbach resonance
• Trajectory of neutron$-$neutron${-}^{18}C$ excited three-body state
• Neutron${-}^{19}$C scattering near an Efimov state
• Resonant Dimer Relaxation in Cold Atoms with a Large Scattering Length
• Effective Range Corrections to Three-Body Recombination for Atoms with Large Scattering Length
• Three-body resonances in pionless effective field theory
• Universality Constraints on Three-Body Recombination for Cold Atoms: from 4He to 133Cs
• Temperature dependence of an Efimov resonance in ${}^{39}\mathrm{K}$
• Scaling functions applied to three-body recombination of Cesium-133 atoms
• Few-Body Effects in Cold Atoms and Limit Cycles