Creating a stable molecular condensate using a generalized Raman adiabatic passage scheme

A method to convert atomic condensate into stable molecules using a single optical pulse without the need to sweep through the Feshbach resonance, was presented. The STIRAP (stimulated Raman adiabatic passage) scheme in which the laser is frequently chirped to compensate for the mean-field shift was also generalized. The presence of particle collisions which gave rise to potential dynamically unstable regimes in parameter space was shown. It was found that a high conversion efficiency could be reached only if STIRAP route is designed in a way where unstable regimes are avoided.