Quenched disorder effects on deterministic inertia ratchets.
The effect of quenched disorder on the underdamped motion of a periodically driven particle on a ratchet potential is studied. As a consequence of disorder, current reversal and chaotic diffusion may take place on regular trajectories. On the other hand, on some chaotic trajectories disorder induces regular motion. A localization effect similar to the Golosov phenomenon sets in whenever a disorder threshold that depends on the mass of the particle is reached. Possible applications of the localization phenomenon are discussed.
Arizmendi
C M
CM
Department of Physics, Emory University, Atlanta, Georgia 30322, USA.
Family
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Salas-Brito
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