Magnetic Field Dependence and Efimov Resonance Broadening in Ultracold Three-Body Recombination

Abstract

We derive an analytic formula which describes the final bound state dependence in ultracold three-body recombination. Using an energy-dependent loss parameter, the recently observed broad resonance in an ultracold gas of ${}^6$Li atoms [T. B. Ottenstein {\it et al.}, Phys. Rev. Lett. 101, 203202 (2008)l J. H. Huckans {\it et al.}, Phys. Rev. Lett. 102, 165302 (2009)] is described quantitatively. We also provide an analytic and approximation for the three-body recombination rate which encapsulates the underlying physics of the universal three-body recombination process.

4 pages, 4 figures

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Cited by in corpus (4)

• Efimov Physics: a review
• Universality of the three-body Efimov parameter at narrow Feshbach resonances
• The Efimov effect in lithium 6
• Green's Functions and the Adiabatic Hyperspherical Method