Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1861450 | Physics Letters A | 2008 | 5 Pages |
Abstract
The dynamics of Josephson junction equation in case of damping α>2α>2 is investigated numerically. In this case the second-order system can be asymptotically reduced in the large to a one-dimensional circle map. We study the parametric dependence of the resonances of this system and plot the resonant regions in two-dimensional parameter space. The periodic variation of the widths of harmonic regions with increase of the periodic driving force is observed. In the limit of infinite damping, we study a first order system through suitable re-scaling and the same property is observed. We conjecture this may caused by the competition between the periodic potential and the periodic external driving in these systems.
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Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Min Qian, Jia-Zeng Wang, Xue-Juan Zhang,