Three-Body Recombination in Ultracold Systems: Prediction of Weakly-Bound Atomic Trimer Energies

Abstract. The three-body recombination coefficient of an ultracold atomic system, together with the corresponding two-body scattering length a, allow us to predict the energy E3 of the shallow trimer bound state, using a universal scaling function. The production of dimers in trapped Bose-Einstein con-densates, from three-body recombination processes, in the regime of short magnetic pulses near a Feshbach resonance, is also studied in line with the experimental observation.