The window Josephson junction: a coupled linear nonlinear system

Details The window Josephson junction: a coupled linear nonlinear system The window Josephson junction: a coupled linear nonlinear system

2001-06-05

arxiv.org/abs/cond-mat/0106063v1

Physics

Condensed Matter

Superconductivity

27 pages, 10 figures

Scientific paper

10.1016/S0167-2789(01)00356-6

We investigate the interface coupling between the 2D sine-Gordon equation and the 2D wave equation in the context of a Josephson window junction using a finite volume numerical method and soliton perturbation theory. The geometry of the domain as well as the electrical coupling parameters are considered. When the linear region is located at each end of the nonlinear domain, we derive an effective 1D model, and using soliton perturbation theory, compute the fixed points that can trap either a kink or antikink at an interface between two sine-Gordon media. This approximate analysis is validated by comparing with the solution of the partial differential equation and describes kink motion in the 1D window junction. Using this, we analyze steady state kink motion and derive values for the average speed in the 1D and 2D systems. Finally we show how geometry and the coupling parameters can destabilize kink motion.

Affiliated with

Also associated with

No associations

Rating

The window Josephson junction: a coupled linear nonlinear system 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 The window Josephson junction: a coupled linear nonlinear system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The window Josephson junction: a coupled linear nonlinear system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-405877