Splitting and trapping of bose-condensed gases in multi-wells

摘要

For the Bose-condensed gas in a one-dimensional optical lattice, several far-off resonant laser beams axe used to split and trap the matter wavepacket after switching off both the magnetic trap and optical lattices. In the presence of two fax-off resonant laser beams which axe not symmetric about the centre of the matter wavepacket, we propose an experimental scheme to observe the collision between two side peaks after switching off the magnetic trap and optical lattice. We also discuss an experimental scheme to realize a coherent splitting and trapping of the matter wavepacket which has potential application in atom optics.