Abstract
We propose an efficient scheme to avoid collision-induced dynamical instabilities in the generation of heteronuclear molecular Bose–Einstein condensates based on an R-type photoassociative adiabatic passage. This scheme allows us to completely compensate the intraspecies collisions by tunable interspecies collisions, and thereby achieve a robust atom–molecule conversion which is equivalent to that in a collision-free case. By taking the formation of stable 41K87Rb molecules as an example, we study the feasibility of the scheme.
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