Properties of a coupled two species atom-heteronuclear molecule   condensate
  We study the coherent association of a two-species atomic condensate into a condensate of heteronuclear diatomic molecules, using both a semiclassical treatment and a quantum mechanical approach. The differences and connections between the two approaches are examined. We show that, in this coupled nonlinear atom-molecule system, the population difference between the two atomic species plays a significant role in the ground-state stability properties as well as in coherent population oscillation dynamics. 
Lu Zhou, Weiping Zhang, Hong Y. Ling, Lei Jiang and Han Pu