Solvable models of Bose-Einstein condensates: a new algebraic Bethe   ansatz scheme
  A new algebraic Bethe ansatz scheme is proposed to diagonalise classes of integrable models relevant to the description of Bose-Einstein condensates in dilute alkali gases. This is achieved by introducing the notion of Z-graded representations of the Yang-Baxter algebra. 
H.-Q. Zhou, J. Links, M.D. Gould and R.H. McKenzie