Ratchet behavior in nonlinear Klein-Gordon systems with point-like inhomogeneities

Details Ratchet behavior in nonlinear Klein-Gordon systems with point-like inhomogeneities Ratchet behavior in nonlinear Klein-Gordon systems with point-like inhomogeneities

2004-10-13

arxiv.org/abs/cond-mat/0410320v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevE.72.016612

We investigate the ratchet dynamics of nonlinear Klein-Gordon kinks in a periodic, asymmetric lattice of point-like inhomogeneities. We explain the underlying rectification mechanism within a collective coordinate framework, which shows that such system behaves as a rocking ratchet for point particles. Careful attention is given to the kink width dynamics and its role in the transport. We also analyze the robustness of our kink rocking ratchet in the presence of noise. We show that the noise activates unidirectional motion in a parameter range where such motion is not observed in the noiseless case. This is subsequently corroborated by the collective variable theory. An explanation for this new phenomenom is given.

Affiliated with

Also associated with

No associations

Rating

Ratchet behavior in nonlinear Klein-Gordon systems with point-like inhomogeneities does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Ratchet behavior in nonlinear Klein-Gordon systems with point-like inhomogeneities, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ratchet behavior in nonlinear Klein-Gordon systems with point-like inhomogeneities will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-135996