Motional dispersions and ratchet effect in inertial systems
arXiv:0805.0077 · doi:10.1007/s12043-008-0162-5
Abstract
We obtain ratchet effect in inertial structureless systems in symmetric periodic potentials where the asymmetry comes from the nonuniform friction offered by the medium and driven by symmetric periodic forces. In the adiabatic limit the calculations are done by extending the matrix continued fraction method and also by numerically solving the appropriate Langevin equation. For finite frequency field drive the ratchet effect is obtained only numerically. In the transient time scales the system shows dispersionless behaviour as reported earlier when a constant force is applied. In the periodic drive case the dispersion behaviour is more complex. In this brief communication we report some of the results of our work
14 pages, 7figures
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Cited by in corpus (6)
- Stochastic Resonance in Periodic Potentials
- Particle dynamics in a symmetrically driven underdamped inhomogeneous periodic potential system
- Deterministic inhomogeneous inertia ratchets
- Ratchet effect in an underdamped periodic potential and its characterisation
- Dispersionless motion in a driven periodic potential
- Inertial frictional ratchets and their load bearing efficiencies