Phase engineering of squeezed states and controlled entangled number   states of Bose-Einstein condensates in multiple wells
  We provide a scheme for the generation of controlled entangled number states of Bose-Einstein condensates in multiple wells, and also provide a novel method for the creation of squeezed states without severe adiabatic constraints on barrier heights. The condensate in a multiple well trap can be evolved, starting with a specific initial phase difference between the neighboring wells, to a tunable entangled state or a squeezed state. We propose a general formula for the initial phase difference between the neighboring wells that is valid for any number of wells, even and odd. 
Khan W. Mahmud, Mary Ann Leung, and William P. Reinhardt