Exactly solvable models for triatomic-molecular Bose-Einstein   Condensates
  We construct a family of triatomic models for heteronuclear and homonuclear molecular Bose-Einstein condensates. We show that these new generalized models are exactly solvable through the algebraic Bethe ansatz method and derive their corresponding Bethe ansatz equations and energies. 
G. Santos, A. Foerster, I. Roditi, Z. V. T. Santos, A. P. Tonel