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Abstract: We present a comprehensive collection of ultracold three-body collisionsproperties near overlapping Feshbach resonances. Our results incorporatevariations of all scattering lengths and demonstrate novel collisionalbehavior, such as atom-molecule interference effects. Taking advantage of theunique ways in which these collisions reflect Efimov physics, new pathways tocontrol atomic and molecular losses open up. Further, we show that overlappingresonances can greatly improve the chances of observing multiple Efimovfeatures in an ultracold quantum gas for nearly any system.



Author: J. P. D'Incao, B. D. Esry

Source: https://arxiv.org/



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