https://doi.org/10.1140/epjb/e2012-20921-9
Regular Article
Directed transport in deformable ratchets
Laboratory of Quantum Information Technology, ICMP and SPTE, South
China Normal University, 510006
Guangzhou, P.R.
China
a e-mail: aibq@scnu.edu.cn
Received:
11
September
2011
Received in final form:
7
March
2012
Published online:
24
May
2012
Transport of overdamped Brownian particles in deformable potentials is investigated in the presence of asymmetrically unbiased fluctuations. It is found that the deformation of the potential can strongly affect the directed transport. For small noise strength, the current is not always monotonic function of deformable parameter. For large noise strength, there exists a value of deformable parameter at which the current takes its maximum. Therefore, it is possible to obtain the optimal transport by changing the deformation of the potential.
Key words: Statistical and Nonlinear Physics
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2012
