AC Driven Jumps Distribution on a Periodic Substrate

Details AC Driven Jumps Distribution on a Periodic Substrate AC Driven Jumps Distribution on a Periodic Substrate

2000-09-12

arxiv.org/abs/cond-mat/0009177v1

Physics

Condensed Matter

Statistical Mechanics

4 pages, 4 figures, RevTeX, to be published in Surface Science Letters

Scientific paper

10.1016/S0039-6028(00)00780-9

A driven Brownian particle (e.g. an adatom on a surface) diffusing on a low-viscosity, periodic substrate may execute multiple jumps. In the presence of an additional periodic drive, the jump lengths and time durations become statistically modulated according to a syncronyzation mechanism reminiscent of asymmetric stochastic resonance. Here, too, bistability plays a key role, but in a dynamical sense, inasmuch as a particle switches between locked and running states.

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