Brownian rectifiers in the presence of temporally asymmetric unbiased forces

Abstract

The efficiency of energy transduction in a temporally asymmetric rocked ratchet is studied. Time asymmetry favours current in one direction and suppresses it in the opposite direction due to which large efficiency ~ 50% is readily obtained. The spatial asymmetry in the potential together with system inhomogeneity may help in further enhancing the efficiency. Fine tuning of system parameters considered leads to multiple current reversals even in the adiabatic regime.

References in corpus (9)

• Brownian motors: noisy transport far from equilibrium
• Energetics of Forced Thermal Ratchet
• Multiple current reversals in forced inhomogeneous ratchets
• Mobility and stochastic resonance in spatially inhomogeneous system
• Enslaving random fluctuations in nonequlibrium systems
• Giant diffusion and coherent transport in tilted periodic inhomogeneous systems
• Thermal Noise Can Facilitate Energy Conversion by Ratchet System?
• Efficiency optimization in a correlation ratchet with asymmetric unbiased fluctuations
• Stochastic Resonance in Washboard Potentials

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• Dynamics stabilization and transport coherency in a rocking ratchet for cold atoms
• Impact of rough potentials in rocked ratchet performance
• Reorganization of a 2D disordered granular medium due to a small local cyclic perturbation
• Enhanced thermodynamic efficiency in time asymmetric ratchets
• Giant coherence in driven systems
• Inertial frictional ratchets and their load bearing efficiencies
• Brownian motors: Joint effect of non-Gaussian noise and time asymmetric forcing