Manipulating the momentum state of a condensate by sequences of standing   wave pulses
  We analyze the effects of sequences of standing wave pulses on a Bose-Einstein condensate (BEC). Experimental observations are in good agreement with a numerical simulation based on the band structure theory in the optical lattice. We also demonstrate that a coherent control method based on such sequences of pulses is very efficient for experimentally designing specific momentum states. 
Wei Xiong, Xuguang Yue, Zhongkai Wang, Xiaoji Zhou, Xuzong Chen
cond-mat.quant-gas physics.atm-clus quant-ph