Current and efficiency of Brownian particles under oscillating forces in entropic barriers*
Nutku Ferhat†, Aydιner Ekrem‡
       
Effects of the amplitude of the zero-mean force on the average particle current J (a) and efficiency η (b) for various types of oscillating forces. Selected parameters are α = 1/2, a = 1/2 π , b = 1.5/2 π , Δ = 1.0, L = 2 π , f = 0.01, and T = 0.2.