Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1864428 | Physics Letters A | 2009 | 5 Pages |
Abstract
We consider a long Josephson junction with a discontinuity point characterized by a gauge phase-shift. The system is described by a modified sine-Gordon equation. We study, in particular, the interactions between a fluxon and a fractional fluxon. A perturbation theory is developed in the small phase-shift limit to understand the characteristics of the interaction. Finally, numerical computations of the threshold bias current and the threshold velocity for a fluxon running over a fractional fluxon are presented.
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Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
H. Susanto, J.A. EspÃnola-Rocha,