TY  - JOUR
A1  - Vincent, Uchechukwu E.
A1  - Kenfack, Anatole
A1  - Senthilkumar, Dharmapuri Vijayan
A1  - Mayer, Dieter
A1  - Kurths, Jürgen
T1  - Current reversals and synchronization in coupled ratchets
N2  - Current reversal is an intriguing phenomenon that has been central to recent experimental and theoretical investigations of transport based on ratchet mechanism. By considering a system of two interacting ratchets, we demonstrate how the coupling can be used to control the reversals. In particular, we find that current reversal that exists in a single driven ratchet system can ultimately be eliminated with the presence of a second ratchet. For specific coupling strengths a current-reversal free regime has been detected. Furthermore, in the fully synchronized state characterized by the coupling threshold k(th), a specific driving amplitude a(opt) is found for which the transport is optimum.
Y1  - 2010
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/31533
UR  - http://pre.aps.org/
SN  - 1539-3755
ER  -