Abstract
With both theoretical approximation and numerical simulations, we study steady current of a Brownian particle moving in an asymmetric periodic potential driven by cross-correlation between multiplicative and additive noises. The effects of the asymmetric parameter of the potential, the multiplicative noise intensity, the additive noise intensity and the correlated strength between multiplicative and additive noises are discussed. We find current reversal with respect to a variation of the asymmetric parameter or the correlated strength. It is also shown that the direction of the steady current is controlled by multiplicative or additive noise intensity, but they are not sufficient conditions for current reversal.
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