Quasi-classical dynamics of interacting Bose condensates
  The dynamics of the composition of uniform Bose condensates involving two species capable of reciprocal interconversion is treated in terms of a collective quasi-spin model. This collective model quickly reduces to classical form towards the thermodynamic limit. Quantum solutions are easily obtained numerically short of this limit which give insight into the dynamically relevant correlation processes. 
A. N. Salgueiro (1), M. C. Nemes (2), M. D. Sampaio (2) and A. F. R.   de Toledo Piza (1) ((1) Intituto de Fisica da Univers...