Supersolitons: Solitonic excitations in atomic soliton chains
  We show that, by appropriately tuning physically relevant interactions in two-component nonlinear Schrodinger equations, it is possible to achieve a regime with particle-like solitonic collisions. This allows us to construct an analogue of the Newton's cradle and also to create localized collective excitations in solitary-wave chains which are quasi-integrable solitons, i.e. supersolitons.   We give a physical explanation of the phenomenon, support it with a perturbative analysis, and confirm our predictions by direct simulations. 
David Novoa, Boris A. Malomed, Humberto Michinel, and Victor M.   Perez-Garcia