Three-body recombination near a narrow Feshbach resonance in ${}^6$Li

Abstract

We experimentally measure, and theoretically analyze the three-atom recombination rate, $L_3$, around a narrow $s$ wave magnetic Feshbach resonance of ${}^6$Li-${}^6$Li at 543.3 Gauss. By examining both the magnetic field dependence and especially the temperature dependence of $L_3$ over a wide range of temperatures from a few $\mu$K to above 200 $\mu$K, we show that three-atom recombination through a narrow resonance follows a universal behavior determined by the long-range van der Waals potential, and can be described by a set of rate equations in which three-body recombination proceeds via successive pairwise interactions. We expect the underlying physical picture to be applicable not only to narrow $s$ wave resonances, but also to resonances in nonzero partial waves, and not only at ultracold temperatures, but also at much higher temperatures.

6 pages,7 figures, 1 table

References in corpus (8)

• Scattering Length Scaling Laws for Ultracold Three-Body Collisions
• Universal three-body parameter in heteronuclear atomic systems
• Microscopic Origin and Universality Classes of the Efimov Three-Body Parameter
• Universal model for exoergic bimolecular reactions and inelastic processes
• Observation of "broad" d-wave Feshbach resonances with a triplet structure
• Quantum Langevin model for exoergic ion-molecule reactions and inelastic processes
• Bose atoms in a trap: a variational Monte Carlo formulation for the universal behavior at the Van der Waals length scale
• Strongly Interacting Bose Gases near a $d$-wave Shape Resonance

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