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Enhanced Dimer Relaxation in an Atomic/Molecular BEC

Eric Braaten·H. -W. Hammer
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Abstract

We derive a universal formula for the rate constant βfor relaxation of a shallow dimer into deeply-bound diatomic molecules in the case of atoms with a large scattering length a. We show that βis determined by a and by two 3-body parameters that also determine the binding energies and widths of Efimov states. The rate constant βscales like \hbar a/m near the resonance, but the coefficient is a periodic function of ln(a) that may have resonant enhancement at values of a that differ by multiples of 22.7.

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Eric Braaten, H. -W. Hammer. 2004-08-02. Enhanced Dimer Relaxation in an Atomic/Molecular BEC. https://doi.org/10.1103/physreva.70.042706

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