  The dynamics of a wave function describing a particle confined in a multiple
quantum well potential is studied numerically. As a consequence of quantum
mechanical tunneling, an initial wavefunction designed to be localized in one
well can localize in the others after a certain time and hop between wells at
times which depends on the height and width of the barriers separating the
wells. This feature could find potential application in controlling electron
transport in quantum well heterostructures
