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arXiv · 0811.3578

Three-body Recombination of Lithium-6 Atoms with Large Negative Scattering Lengths

Eric Braaten·H. -W. Hammer·Daekyoung Kang·Lucas Platter
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Abstract

The 3-body recombination rate at threshold for distinguishable atoms with large negative pair scattering lengths is calculated in the zero-range approximation. The only parameters in this limit are the 3 scattering lengths and the Efimov parameter, which can be complex valued. We provide semi-analytic expressions for the cases of 2 or 3 equal scattering lengths and we obtain numerical results for the general case of 3 different scattering lengths. Our general result is applied to the three lowest hyperfine states of Lithium-6 atoms. Comparisons with recent experiments provide indications of loss features associated with Efimov trimers near the 3-atom threshold.

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Eric Braaten, H. -W. Hammer, Daekyoung Kang, Lucas Platter. 2008-11-21. Three-body Recombination of Lithium-6 Atoms with Large Negative Scattering Lengths. https://doi.org/10.1103/physrevlett.103.073202

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