Supersolitons:: Solitonic excitations in atomic soliton chains

We show that, by tuning interactions in nonintegrable vector nonlinear Schro dinger equations modeling Bose-Einstein condensates and other relevant physical systems, it is possible to achieve a regime of elastic particlelike collisions between solitons. This would allow one to construct a Newton's cradle with solitons and supersolitons: localized collective excitations in solitary- wave chains.