  We demonstrate the control of vortical motion of neutral classical particles
in driven superlattices. Our superlattice consists of a superposition of
individual lattices whose potential depths are modulated periodically in time
but with different phases. This driving scheme breaks the spatial reflection
symmetries and allows an ensemble of particles to rotate with an average
angular velocity. An analysis of the underlying dynamical attractors provides
an efficient method to control the angular velocities of the particles by
changing the driving amplitude. As a result, spatially periodic patterns of
particles showing different vortical motion can be created. Possible
experimental realizations include holographic optical lattice based setups for
colloids or cold atoms.
