Transport and dynamical properties of inertial ratchets
arXiv:0811.2828 · doi:10.1016/j.physa.2009.06.031
Abstract
In this paper we discuss the dynamics and transport properties of a massive particle, in a time dependent periodic potential of the ratchet type, with a dissipative environment. The directional currents and characteristics of the motion are studied as the specific frictional coefficient varies, finding that the stationary regime is strongly dependent on this parameter. The maximal Lyapunov exponent and the current show large fluctuations and inversions, therefore for some range of the control parameter, this inertial ratchet could originate a mass separation device. Also an exploration of the effect of a random force on the system is performed.
arXiv commentPDF, 16 pages, 7 figures
References in corpus (8)
- Brownian motors: noisy transport far from equilibrium
- Directed current due to broken time-space symmetry
- Chaotic Transport and Current Reversal in Deterministic Ratchets
- Voltage rectification by a SQUID ratchet
- Lateral Separation of Macromolecules and Polyelectrolytes in Microlithographic Arrays
- Periodically driven Quantum Ratchets: Symmetries and Resonances
- Disorder Induced Diffusive Transport In Ratchets
- Control of Current Reversal in Single and Multiparticle Inertia Ratchets