Simultaneous control of multi-species particle transport and segregation in driven lattices
arXiv:1710.04637 · doi:10.1103/PhysRevLett.120.218002
Abstract
We provide a generic scheme to separate the particles of a mixture by their physical properties like mass, friction or size. The scheme employs a periodically shaken two dimensional dissipative lattice and hinges on a simultaneous transport of particles in species-specific directions. This selective transport is achieved by controlling the late-time nonlinear particle dynamics, via the attractors embedded in the phase space and their bifurcations. To illustrate the spectrum of possible applications of the scheme, we exemplarily demonstrate the separation of polydisperse colloids and mixtures of cold thermal alkali atoms in optical lattices.
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- Multiple current reversals using superimposed driven lattices
- Controlling transport of underdamped particles in two-dimensional driven Bravais lattices
- Mass separation in an asymmetric channel
- Separation of bi-dispersed microspheres in dusty plasma ratchet experiments