Deterministic Smoluchowski-Feynman ratchets driven by chaotic noise

Lock Yue Chew
2012 Physical Review E  
We have elucidated the effect of statistical asymmetry on the directed current in Smoluchowski-Feynman ratchets driven by chaotic noise. Based on the inhomogeneous Smoluchowski equation and its generalized version, we arrive at analytical expressions of the directed current that includes a source term. The source term indicates that statistical asymmetry can drive the system further away from thermodynamic equilibrium, as exemplified by the constant flashing, the state-dependent, and the tilted
more » ... ent, and the tilted deterministic Smoluchowski-Feynman ratchets, with the consequence of an enhancement in the directed current.
doi:10.1103/physreve.85.016212 pmid:22400648 fatcat:4m2texqpf5gv5asxxbpjkrmwru