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 Ultracold bosons in the vicinity of a narrow resonance: shallow dimer and recombination


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The different resonant regimes that can be achieved by using a magnetic Feshbach resonance are analyzed with a separable two-channel model. Emphasis is put on the case of narrow resonances in a region of intermediate detuning where a shallow dimer exists and an approximate law including the background scattering length for the three-body recombination rate is derived.



Author: Ludovic Pricoupenko; Mattia Jona Lasinio

Source: https://archive.org/



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