1999/11/29 by Debasis Dan, DEBASIS DAN, Mangal C. Mahato +3 · 4 citations
Engineering · Physics and Astronomy · #Brake Systems and Friction Analysis #Chaos control and synchronization #Current (fluid) #Function (biology) #Noise (video) #Periodic potential #Ratchet #Ratchet effect #cond-mat.soft #cond-mat.stat-mech #stochastic dynamics and bifurcation
paper · pdf · doi:10.1142/s0217979200001291
published in International Journal of Modern Physics B 14(15), 1585-1591 (World Scientific) · 14 pages, including 5 figures
arxiv created 1999/11/29 · openalex publication_date 2000/06/20 · openalex created_date 2016/06/24 · arxiv updated 2016/08/31 · openalex updated_date 2026/08/05
Efficiency of generation of net unidirectional current in an adiabatically driven symmetric periodic potential system is studied. The efficiency shows a maximum, in the case of an inhomogeneous system with spatially varying periodic friction coefficient, as a function of temperature. The ratchet is not most efficient when it gives maximum current. The direction of current may also be reversed as a function of noise strength when, instead, an asymmetric periodic potential is considered.