Towards coherent control of a Bose-Einstein condensate in a double well - art. no. 011601

A type of solution to the nonlinear Schrodinger equation for periodically d riven Bose-Einstein condensates is introduced, which generalizes the famili ar single-particle Floquet states. These solutions lead to the prediction t hat the onset of self-trapping of a condensate in a periodically modulated double well can be systematically controlled. This mean-field prediction is confirmed on the N-particle level, and explained by a pairing mechanism.