Nonlinear Sciences – Pattern Formation and Solitons
Scientific paper
2001-04-19
Nonlinear Sciences
Pattern Formation and Solitons
Physical Review B, in press (Rapid Communication)
Scientific paper
10.1103/PhysRevB.64.020302
We report the first experimental observation of phase-locked motion of a topological soliton at a nonzero average velocity in a periodically modulated lossy medium, under the action of an ac force with no dc component [the effect was predicted by G. Filatrella, B.A. Malomed, and R.D. Parmentier, Phys. Lett. A 198, 43 (1995)]. The velocity is related by a resonant condition to the driving frequency. The observation is made in terms of the current-voltage, I(V), characteristics for a fluxon trapped in an annular Josephson junction placed into dc magnetic field. Large zero-crossing constant-voltage steps, exactly corresponding to the resonantly locked soliton motion at different orders of the resonance, are found on the experimental I(V) curves. A measured dependence of the size of the steps vs. the external magnetic field is in good agreement with predictions of an analytical model based on the balance equation for the fluxon's energy. The effect has a potential application as a low-frequency voltage standard. The work was supported by a grant from the German-Israeli Foundation.
Malomed Boris
Ustinov Alexey
No associations
LandOfFree
Observation of progressive motion of ac-driven solitons 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 Observation of progressive motion of ac-driven solitons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of progressive motion of ac-driven solitons will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-141309