Transport and dynamical properties of inertial ratchets

Details Transport and dynamical properties of inertial ratchets Transport and dynamical properties of inertial ratchets

2008-11-18

arxiv.org/abs/0811.2828v1

Physics

Condensed Matter

Other Condensed Matter

PDF, 16 pages, 7 figures

Scientific paper

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.

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